Simplify Square Roots of Variables Calculator - Your Ultimate Guide

Topic simplify square roots variables calculator: Discover how to simplify square roots of variables easily with our comprehensive guide. This article covers basic concepts, step-by-step instructions, and common mistakes to avoid. Plus, learn about advanced techniques and the best online calculators available to simplify your expressions effectively.

Simplifying Square Roots of Variables Calculator

Simplifying square roots involving variables can be challenging, but using an online calculator can make the process easier and faster. These calculators are designed to handle complex expressions and simplify them into their simplest form.

Steps to Simplify Square Roots of Variables:

  1. Input the square root expression into the calculator. This can include variables, constants, and coefficients.
  2. The calculator will factor the expression, breaking it down into its prime components.
  3. It will then simplify the square root by extracting the factors that are perfect squares.
  4. The simplified form will be displayed, showing the expression in its most reduced form.

Example of Simplifying Square Roots of Variables:

Consider the expression \( \sqrt{50x^4y^2} \):

  • Factor inside the square root: \( 50x^4y^2 = 25 \times 2 \times x^4 \times y^2 \)
  • Extract perfect squares: \( \sqrt{25 \times 2 \times x^4 \times y^2} = \sqrt{25} \times \sqrt{2} \times \sqrt{x^4} \times \sqrt{y^2} \)
  • Simplify: \( 5 \times \sqrt{2} \times x^2 \times y \)

So, \( \sqrt{50x^4y^2} = 5x^2y\sqrt{2} \).

Using the Calculator:

  • Enter the expression you want to simplify.
  • Ensure that the variables and constants are correctly input.
  • Click the "Simplify" button to see the result.

Benefits of Using a Calculator:

  • Time-saving: Quickly simplifies complex expressions.
  • Accuracy: Reduces the chances of making manual calculation errors.
  • Convenience: Available online and easy to use.

Popular Online Calculators:

Conclusion:

Using an online calculator to simplify square roots involving variables is a highly efficient method for students and professionals alike. By following the steps and utilizing the resources available, you can ensure accurate and simplified results for any complex expression.

Simplifying Square Roots of Variables Calculator

Introduction to Simplifying Square Roots

Simplifying square roots, especially those involving variables, is a fundamental skill in algebra that helps to make expressions more manageable. This guide will help you understand the basics of square roots, their properties, and the step-by-step process to simplify them. Let's begin with a few key concepts:

  • Square Root Definition: The square root of a number \( x \) is a value that, when multiplied by itself, gives \( x \). Mathematically, this is expressed as \( \sqrt{x} \).
  • Perfect Squares: These are numbers whose square roots are integers. For example, \( \sqrt{16} = 4 \) because \( 4 \times 4 = 16 \).
  • Variables in Square Roots: When dealing with variables, the same principles apply. For example, \( \sqrt{x^2} = x \) if \( x \) is non-negative.

To simplify square roots with variables, follow these steps:

  1. Factor the Expression: Break down the number or variable expression inside the square root into its prime factors or simplest form. For example, \( \sqrt{50x^2} \) can be factored into \( \sqrt{25 \cdot 2 \cdot x^2} \).
  2. Separate the Factors: Use the property \( \sqrt{a \cdot b} = \sqrt{a} \cdot \sqrt{b} \). In our example, \( \sqrt{25 \cdot 2 \cdot x^2} = \sqrt{25} \cdot \sqrt{2} \cdot \sqrt{x^2} \).
  3. Simplify Each Square Root: Simplify the square roots of the individual factors. Thus, \( \sqrt{25} = 5 \), \( \sqrt{2} \) remains as is, and \( \sqrt{x^2} = x \). Therefore, \( \sqrt{50x^2} = 5x\sqrt{2} \).

Understanding these steps will enable you to simplify any square root expressions involving variables effectively. As you progress, you will also encounter more complex expressions, but the fundamental principles will remain the same.

Basic Concepts of Square Roots

The concept of square roots is fundamental in mathematics, particularly in algebra and geometry. Understanding square roots involves recognizing their properties and how they interact with numbers and variables. Here are the basic concepts you need to know:

  • Definition: The square root of a number \( x \) is a value that, when multiplied by itself, equals \( x \). This is denoted as \( \sqrt{x} \). For example, \( \sqrt{9} = 3 \) because \( 3 \times 3 = 9 \).
  • Properties of Square Roots:
    • \( \sqrt{a \times b} = \sqrt{a} \times \sqrt{b} \): This property allows us to break down the square root of a product into the product of the square roots.
    • \( \sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}} \): This property allows us to take the square root of a fraction by taking the square root of the numerator and the denominator separately.
    • \( (\sqrt{a})^2 = a \): The square root of a number squared returns the original number.
    • \( \sqrt{a^2} = |a| \): The square root of a squared number is the absolute value of the original number.
  • Perfect Squares: Numbers like 1, 4, 9, 16, and 25 are perfect squares because their square roots are integers (e.g., \( \sqrt{16} = 4 \)).
  • Simplifying Square Roots: Simplifying square roots involves expressing the number inside the square root as a product of its factors, then simplifying each factor. For example, \( \sqrt{18} \) can be simplified to \( \sqrt{9 \times 2} = \sqrt{9} \times \sqrt{2} = 3\sqrt{2} \).

Here are some examples to illustrate these concepts:

Expression Simplified Form
\( \sqrt{36} \) 6
\( \sqrt{50} \) 5\sqrt{2}
\( \sqrt{72} \) 6\sqrt{2}
\( \sqrt{x^4} \) x^2

Understanding these basic concepts will help you simplify square roots efficiently and accurately, whether dealing with numerical values or algebraic expressions.

Understanding Variables in Square Roots

Variables in square roots add a layer of complexity to the process of simplification, but the basic principles remain the same. By following a systematic approach, you can simplify expressions involving variables effectively. Here are the steps to understand and simplify square roots with variables:

  1. Identify the Variable: Determine the variable or variables within the square root expression. For example, in \( \sqrt{50x^2} \), the variable is \( x \).
  2. Factor the Expression: Factor the expression under the square root into its prime factors or simplest form. For instance, \( \sqrt{50x^2} \) can be factored into \( \sqrt{25 \cdot 2 \cdot x^2} \).
  3. Apply the Product Property of Square Roots: Use the property \( \sqrt{a \cdot b} = \sqrt{a} \cdot \sqrt{b} \) to separate the factors. In our example, \( \sqrt{25 \cdot 2 \cdot x^2} = \sqrt{25} \cdot \sqrt{2} \cdot \sqrt{x^2} \).
  4. Simplify Each Factor: Simplify the square roots of the individual factors. For example:
    • \( \sqrt{25} = 5 \)
    • \( \sqrt{2} \) remains as \( \sqrt{2} \)
    • \( \sqrt{x^2} = x \) (assuming \( x \) is non-negative)
    Combining these, \( \sqrt{50x^2} = 5x\sqrt{2} \).

Let's look at more examples to solidify our understanding:

Expression Simplified Form
\( \sqrt{18y^2} \) 3y\sqrt{2}
\( \sqrt{72a^4b^2} \) 6a^2b\sqrt{2}
\( \sqrt{45x^3} \) 3x\sqrt{5x}
\( \sqrt{200m^2n} \) 10m\sqrt{2n}

Understanding and applying these steps will enable you to simplify square roots involving variables with confidence and accuracy. With practice, you will be able to tackle even more complex expressions.

Step-by-Step Process to Simplify Square Roots

Simplifying square roots, especially those that include variables, can be straightforward if you follow a systematic approach. Here is a detailed, step-by-step guide to help you through the process:

  1. Identify the Expression: Start by identifying the square root expression you need to simplify. For example, \( \sqrt{75x^2y^3} \).
  2. Factorize the Expression: Break down the number and the variables inside the square root into their prime factors. For instance:
    • Factor 75 into \( 25 \times 3 \) (since \( 75 = 25 \times 3 \))
    • Factor \( x^2 \) as it is
    • Factor \( y^3 \) into \( y^2 \times y \)
    The expression becomes \( \sqrt{25 \times 3 \times x^2 \times y^2 \times y} \).
  3. Separate the Factors: Use the property \( \sqrt{a \cdot b} = \sqrt{a} \cdot \sqrt{b} \) to separate the factors:
    • \( \sqrt{25 \times 3 \times x^2 \times y^2 \times y} = \sqrt{25} \cdot \sqrt{3} \cdot \sqrt{x^2} \cdot \sqrt{y^2} \cdot \sqrt{y} \)
  4. Simplify Each Factor: Simplify the square roots of the individual factors:
    • \( \sqrt{25} = 5 \)
    • \( \sqrt{3} \) remains \( \sqrt{3} \)
    • \( \sqrt{x^2} = x \) (assuming \( x \) is non-negative)
    • \( \sqrt{y^2} = y \) (assuming \( y \) is non-negative)
    • \( \sqrt{y} \) remains \( \sqrt{y} \)
    Combining these, the expression becomes \( 5xy\sqrt{3y} \).

Here's a table of additional examples to illustrate the process:

Expression Step-by-Step Simplification Simplified Form
\( \sqrt{50x^2} \) \( \sqrt{25 \cdot 2 \cdot x^2} = \sqrt{25} \cdot \sqrt{2} \cdot \sqrt{x^2} \) 5x\sqrt{2}
\( \sqrt{18y^4} \) \( \sqrt{9 \cdot 2 \cdot y^4} = \sqrt{9} \cdot \sqrt{2} \cdot \sqrt{y^4} \) 3y^2\sqrt{2}
\( \sqrt{72a^2b^3} \) \( \sqrt{36 \cdot 2 \cdot a^2 \cdot b^2 \cdot b} = \sqrt{36} \cdot \sqrt{2} \cdot \sqrt{a^2} \cdot \sqrt{b^2} \cdot \sqrt{b} \) 6ab\sqrt{2b}
\( \sqrt{200m^2n^3} \) \( \sqrt{100 \cdot 2 \cdot m^2 \cdot n^2 \cdot n} = \sqrt{100} \cdot \sqrt{2} \cdot \sqrt{m^2} \cdot \sqrt{n^2} \cdot \sqrt{n} \) 10mn\sqrt{2n}

By following these steps and practicing with various expressions, you'll become proficient at simplifying square roots involving both numbers and variables.

Step-by-Step Process to Simplify Square Roots

Common Mistakes to Avoid

Simplifying square roots involving variables can be tricky, and there are several common mistakes students often make. Here are some of the most frequent errors and how to avoid them:

  1. Ignoring Prime Factorization: Not breaking down the number inside the square root into its prime factors can lead to incorrect simplifications. Always factorize the number completely. For example, instead of directly simplifying \( \sqrt{50} \), break it down into \( \sqrt{25 \cdot 2} \).
  2. Misapplying the Product Property: The property \( \sqrt{a \cdot b} = \sqrt{a} \cdot \sqrt{b} \) is only valid if both \( a \) and \( b \) are non-negative. Ensure that you're correctly applying this property to avoid mistakes.
  3. Incorrectly Simplifying Variables: Remember that \( \sqrt{x^2} = |x| \). It's common to forget the absolute value, especially when dealing with variables. For instance, \( \sqrt{y^2} = |y| \), not just \( y \).
  4. Combining Unlike Terms: Be careful not to combine terms that cannot be simplified together. For example, \( \sqrt{2} + \sqrt{3} \) cannot be simplified to \( \sqrt{5} \).
  5. Forgetting to Simplify Completely: After breaking down the expression, ensure that all possible simplifications are made. For example, \( \sqrt{72x^4} \) should be simplified to \( 6x^2\sqrt{2} \), not left as \( \sqrt{36 \cdot 2 \cdot x^4} \).

To help you understand these mistakes better, here are some examples:

Mistake Incorrect Simplification Correct Simplification
Ignoring Prime Factorization \( \sqrt{50} = \sqrt{25 + 25} = 5 \) \( \sqrt{50} = \sqrt{25 \cdot 2} = 5\sqrt{2} \)
Misapplying Product Property \( \sqrt{-4 \cdot -9} = \sqrt{36} = 6 \) \( \sqrt{-4 \cdot -9} \neq \sqrt{36} \)
Incorrectly Simplifying Variables \( \sqrt{x^2} = x \) \( \sqrt{x^2} = |x| \)
Combining Unlike Terms \( \sqrt{2} + \sqrt{3} = \sqrt{5} \) \( \sqrt{2} + \sqrt{3} \) remains \( \sqrt{2} + \sqrt{3} \)
Forgetting to Simplify Completely \( \sqrt{72x^4} = \sqrt{36 \cdot 2 \cdot x^4} \) \( \sqrt{72x^4} = 6x^2\sqrt{2} \)

By being aware of these common mistakes and taking care to avoid them, you can ensure that your simplifications are accurate and efficient.

Advanced Techniques for Simplifying Complex Expressions

When dealing with complex expressions involving square roots and variables, there are several advanced techniques you can employ to simplify them effectively. Below are detailed steps and methods:

Step-by-Step Process

  1. Identify the Radicals: Start by identifying all the radical expressions in the equation. This includes both numerical and variable components under the square root.

  2. Apply the Product Rule: Use the product rule of radicals, which states that \(\sqrt{a} \cdot \sqrt{b} = \sqrt{a \cdot b}\). This helps in combining or separating radicals to simplify them.

  3. Factor Inside the Radical: Factor the expression inside the radical to its prime factors. For example, \(\sqrt{18x^4}\) can be factored as \(\sqrt{2 \cdot 3^2 \cdot x^4}\).

  4. Use the Quotient Rule: For division under a radical, apply the quotient rule, \(\sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}}\). This is useful in simplifying fractions under a square root.

  5. Simplify Exponents: For variables raised to a power, such as \(\sqrt{x^6}\), use the property that \(\sqrt{x^n} = x^{n/2}\). Hence, \(\sqrt{x^6} = x^3\).

  6. Combine Like Terms: Once the radicals are simplified, combine like terms to further simplify the expression. For example, \(2\sqrt{3} + 4\sqrt{3} = 6\sqrt{3}\).

  7. Check for Further Simplification: Sometimes, after simplifying, there may still be potential to reduce the expression further. Always re-evaluate the simplified expression to see if additional steps can be taken.

Examples

Let's look at some examples to illustrate these techniques:

  1. Example 1: Simplify \(\sqrt{50x^4}\)

    Solution:

    • Factor the radicand: \(\sqrt{50x^4} = \sqrt{2 \cdot 5^2 \cdot x^4}\)
    • Separate into individual radicals: \(\sqrt{2} \cdot \sqrt{5^2} \cdot \sqrt{x^4}\)
    • Simplify each radical: \(\sqrt{2} \cdot 5 \cdot x^2 = 5x^2\sqrt{2}\)
  2. Example 2: Simplify \(\frac{\sqrt{18x^3}}{\sqrt{2x}}\)

    Solution:

    • Apply the quotient rule: \(\sqrt{\frac{18x^3}{2x}} = \sqrt{9x^2}\)
    • Simplify the radicand: \(\sqrt{9x^2} = 3x\)

Common Mistakes to Avoid

  • Not factoring the radicand completely before simplifying.
  • Forgetting to apply the product or quotient rules correctly.
  • Neglecting to simplify the exponents in variable terms properly.

By following these advanced techniques and steps, you can simplify complex expressions involving square roots and variables efficiently and accurately. Practice these methods to master the simplification process.

Examples and Practice Problems

Understanding how to simplify square roots, especially when they involve variables, is crucial for mastering algebra and higher mathematics. Below are examples and practice problems to help you gain confidence and proficiency in this area. Each example will demonstrate step-by-step solutions.

Example 1: Simplifying Square Roots of Monomials

Simplify the square root of \( 50x^2 \).

Solution:

  1. Factor the radicand (the expression inside the square root): \[ \sqrt{50x^2} = \sqrt{25 \cdot 2 \cdot x^2} \]
  2. Separate the factors into perfect squares and other factors: \[ \sqrt{25} \cdot \sqrt{2} \cdot \sqrt{x^2} \]
  3. Simplify the square roots of the perfect squares: \[ 5 \cdot \sqrt{2} \cdot x = 5x\sqrt{2} \]

Thus, \(\sqrt{50x^2} = 5x\sqrt{2}\).

Example 2: Simplifying Square Roots with Coefficients

Simplify \( \sqrt{18a^3b} \).

Solution:

  1. Factor the radicand: \[ \sqrt{18a^3b} = \sqrt{9 \cdot 2 \cdot a^2 \cdot a \cdot b} \]
  2. Separate the factors into perfect squares and other factors: \[ \sqrt{9} \cdot \sqrt{2} \cdot \sqrt{a^2} \cdot \sqrt{a} \cdot \sqrt{b} \]
  3. Simplify the square roots of the perfect squares: \[ 3 \cdot \sqrt{2} \cdot a \cdot \sqrt{a} \cdot \sqrt{b} = 3a\sqrt{2ab} \]

Thus, \( \sqrt{18a^3b} = 3a\sqrt{2ab} \).

Practice Problems

Try to simplify the following expressions on your own:

  • \(\sqrt{72x^4y^2}\)
  • \(\sqrt{50a^2b^5}\)
  • \(\sqrt{45m^3n^2}\)
  • \(\sqrt{98p^4q}\)

Use the steps demonstrated in the examples to guide you through these problems. Simplifying square roots requires identifying and extracting perfect square factors. Once you get the hang of it, you'll find that simplifying radicals becomes much more intuitive.

Solutions to Practice Problems

  1. \[ \sqrt{72x^4y^2} = \sqrt{36 \cdot 2 \cdot x^4 \cdot y^2} = 6x^2y\sqrt{2} \]
  2. \[ \sqrt{50a^2b^5} = \sqrt{25 \cdot 2 \cdot a^2 \cdot b^4 \cdot b} = 5a b^2\sqrt{2b} \]
  3. \[ \sqrt{45m^3n^2} = \sqrt{9 \cdot 5 \cdot m^2 \cdot m \cdot n^2} = 3mn\sqrt{5m} \]
  4. \[ \sqrt{98p^4q} = \sqrt{49 \cdot 2 \cdot p^4 \cdot q} = 7p^2\sqrt{2q} \]

Practice consistently and soon you’ll be able to tackle more complex radical expressions with ease!

Benefits of Using Online Calculators

Using online calculators for simplifying square roots of variables offers numerous advantages. These tools are designed to handle complex calculations efficiently and provide accurate results quickly. Here are some of the key benefits:

  • Accuracy: Online calculators ensure precise calculations, reducing the risk of human error, especially in complex expressions.
  • Speed: They perform calculations almost instantaneously, saving significant time compared to manual computations.
  • Step-by-Step Solutions: Many calculators provide detailed step-by-step solutions, helping users understand the process and learn how to simplify square roots themselves.
  • Accessibility: These tools are readily available online and can be accessed from any device with internet connectivity, making them convenient for students and professionals alike.
  • Variety of Functions: Online calculators often come with additional features such as simplifying radicals, handling variables, and solving complex expressions, offering a comprehensive tool for various mathematical tasks.
  • Educational Value: By using these calculators, users can enhance their understanding of mathematical concepts through interactive and practical application.
  • Cost-Effective: Most online calculators are free to use, providing an economical alternative to purchasing physical calculators or software.

Overall, online calculators are invaluable resources for simplifying square roots of variables, making mathematical computations easier, more efficient, and more educational.

Benefits of Using Online Calculators

Popular Square Root Simplification Calculators

Online calculators for simplifying square roots of variables are incredibly useful tools for students, educators, and professionals. Here are some of the most popular ones:

  • Mathway: This calculator simplifies square roots and provides step-by-step solutions. It's user-friendly and can handle complex expressions, making it a great tool for both students and teachers.
  • CalculatorSoup: This tool not only simplifies square roots but also provides additional information such as whether the input is a perfect square. It supports both positive and negative numbers and gives results in both exact and decimal forms.
  • Omni Calculator: Known for its detailed step-by-step solutions, this calculator simplifies square roots and explains the process clearly, making it ideal for learning and teaching purposes.
  • MathPortal: This site offers a comprehensive calculator that simplifies radical expressions. It supports a wide range of mathematical operations and provides clear, step-by-step solutions.
  • dCode: This calculator is useful for simplifying square roots and provides exact values as well as decimal approximations. It’s particularly good for complex roots and offers detailed explanations of the steps involved in the simplification process.

These calculators not only help in simplifying square roots but also enhance the understanding of underlying mathematical concepts. They are valuable resources for anyone looking to deepen their comprehension of algebra and related fields.

Comparison of Top Online Calculators

When it comes to simplifying square roots of variables, several online calculators can help you achieve accurate results quickly. Below, we compare some of the top calculators available online based on their features, ease of use, and functionalities.

Calculator Features Pros Cons Link
Symbolab
  • Simplifies radicals
  • Handles complex expressions
  • Provides step-by-step solutions
  • Supports various algebraic functions
  • Comprehensive functionality
  • Detailed explanations
  • User-friendly interface
  • Requires a subscription for full access
  • Ads can be intrusive
Omni Calculator
  • Simplifies square roots
  • Handles fractional and complex roots
  • Provides step-by-step solutions
  • Free to use
  • Intuitive interface
  • Detailed explanations
  • Limited to specific calculations
Calculator Soup
  • Calculates square roots and perfect squares
  • Handles positive and negative real numbers
  • Provides principal and negative roots
  • Free to use
  • Simple and straightforward
  • Includes complex number solutions
  • Requires JavaScript for full functionality
  • Basic user interface
Math Warehouse
  • Reduces square roots to simplest radical form
  • Calculates real and imaginary roots
  • Handles both positive and negative numbers
  • Free to use
  • Handles a wide range of calculations
  • Offers educational resources
  • Interface could be more modern
  • Advertisements may be distracting

Each of these calculators offers unique features tailored to different needs. Whether you need detailed step-by-step solutions or a quick calculation, one of these tools will likely meet your requirements. Try them out to see which one works best for your specific needs!

FAQs on Square Root Simplification

Below are some frequently asked questions about simplifying square roots:

  • What is a square root?

    A square root of a number \( x \) is a number \( y \) such that \( y^2 = x \). It is represented as \( \sqrt{x} \). For example, the square root of 16 is 4 because \( 4^2 = 16 \).

  • How do I simplify square roots?

    Simplifying square roots involves expressing the number under the root as a product of its prime factors and then applying the square root to these factors. For instance, \( \sqrt{18} = \sqrt{2 \times 3^2} = 3\sqrt{2} \).

  • Can all square roots be simplified?

    No, not all square roots can be simplified to whole numbers. For example, \( \sqrt{2} \) and \( \sqrt{3} \) are already in their simplest radical form.

  • How do I handle square roots with variables?

    When simplifying square roots that include variables, treat the variable parts separately. For example, \( \sqrt{50x^2} = \sqrt{25 \times 2 \times x^2} = 5x\sqrt{2} \).

  • What are the properties of square roots?

    Some key properties of square roots include:

    • \( \sqrt{a \times b} = \sqrt{a} \times \sqrt{b} \)
    • \( \sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}} \)
    • \( (\sqrt{a})^2 = a \)
  • How can I simplify square roots with fractions?

    To simplify square roots in fractions, multiply the numerator and the denominator by the radical in the denominator. For example, \( \frac{1}{\sqrt{2}} = \frac{\sqrt{2}}{2} \).

  • Are there any online tools for simplifying square roots?

    Yes, there are several online calculators available to help simplify square roots. Some popular ones include the , , and the .

Conclusion and Further Resources

Simplifying square roots, especially those involving variables, is a fundamental skill in algebra that aids in solving various mathematical problems efficiently. This guide has covered the basic concepts, provided step-by-step instructions, highlighted common mistakes, and explored advanced techniques for handling complex expressions.

Online calculators are invaluable tools for simplifying square roots of variables. They not only provide quick and accurate results but also help in understanding the underlying process through detailed step-by-step solutions.

Here are some recommended resources and calculators for further practice and study:

  • Mathwarehouse Square Root Calculator: This free tool reduces square roots to their simplest form and provides approximations for real and imaginary roots.
  • Khan Academy: Offers comprehensive tutorials and practice problems for simplifying square roots, including those with variables.
  • dCode Square Root Calculator: Features step-by-step simplification and covers properties of square roots.
  • QuickMath Simplification Tool: This advanced solver simplifies radical expressions and provides detailed solutions.
  • Calculator Soup: A versatile calculator that not only simplifies square roots but also verifies if a number is a perfect square.

For continued learning, consider exploring these additional topics:

Mastering the simplification of square roots involving variables will enhance your mathematical proficiency and prepare you for more advanced topics in algebra and calculus. Keep practicing with these tools and resources to solidify your understanding and skills.

Conclusion and Further Resources

Khái Căn Bậc Hai với Biến Số (Đơn Giản Hóa Toán Học)

Hướng Dẫn Sử Dụng Máy Tính ClassWiz - Đại Số 4-1 Đơn Giản Hóa Căn Bậc Hai

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