Chapter 8: Q6. (page 291)

Complete the simplification.
${(2 \sqrt{7})}^{2}$

Short Answer

Expert verified

The simplified form is,

${(2 \sqrt{7})}^{2} = 28$

Step by step solution

Step 1. Given information.

The given expression is,

${(2 \sqrt{7})}^{2}$

Step 2. It can be further written as below.

We have the given expression is ${(2 \sqrt{7})}^{2}$

Then,

$\begin{matrix} {(2 \sqrt{7})}^{2} = (2 \sqrt{7}) (2 \sqrt{7}) \\ = 4 \sqrt{7 \times 7} \\ = 4 \times 7 \\ = 28 \end{matrix}$

Step 3. Neglect negative sign.

Since, square root is positive quantity

So, we neglect negative sign.

Therefore, the simplified form is, ${(2 \sqrt{7})}^{2} = 28$ .

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Complete the simplification.
${(2 \sqrt{7})}^{2}$

Short Answer

Step by step solution

Step 1. Given information.

Step 2. It can be further written as below.

Step 3. Neglect negative sign.

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Complete the simplification.272

Short Answer

Step by step solution

Step 1. Given information.

Step 2. It can be further written as below.

Step 3. Neglect negative sign.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Mechanics Maths

Probability and Statistics

Statistics

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Logic and Functions

Study anywhere. Anytime. Across all devices.

Complete the simplification.
${(2 \sqrt{7})}^{2}$