Chapter 8: Q.528 (page 854)

In the following exercises, multiply.
$(7 + \sqrt{10}) (7 - \sqrt{10})$

Short Answer

Expert verified

Simplifying,

$(7 + \sqrt{10}) (7 - \sqrt{10}) = 39$

Step by step solution

Step 1. Given infromation

We have,

$(7 + \sqrt{10}) (7 - \sqrt{10})$

Step 2. Concept

We will use difference of two squares formula,

Step 3. Explanation

We have,

$(7 + \sqrt{10}) (7 - \sqrt{10})$

Using difference of two squares formula,

$7^{2} - {(\sqrt{10})}^{2}$

Simplifying,

$49 - 10 = 39$

Step 4. Conclusion

Hence, simplifying $(7 + \sqrt{10}) (7 - \sqrt{10})$ we will get, $39$ .

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In the following exercises, multiply.
$(7 + \sqrt{10}) (7 - \sqrt{10})$

Short Answer

Step by step solution

Step 1. Given infromation

Step 2. Concept

Step 3. Explanation

Step 4. Conclusion

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In the following exercises, multiply.7+107-10

Short Answer

Step by step solution

Step 1. Given infromation

Step 2. Concept

Step 3. Explanation

Step 4. Conclusion

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Applied Mathematics

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Study anywhere. Anytime. Across all devices.

In the following exercises, multiply.
$(7 + \sqrt{10}) (7 - \sqrt{10})$