Chapter 7: Q52. (page 462)

Find the product.
$(x + 5) (x - 5)$

Short Answer

Expert verified

The final answer is $x^{2} - 25$ .

Step by step solution

Step 1. Define an expression.

A mathematical expression is a combinations of numbers and variables ordered with mathematical operations.

Step 2. Expand the identity, (a+b)(a−b).

$(a + b) (a - b) = a^{2} - b^{2} \dots \dots \dots . (1)$

Step 3. Calculate the product (x+5)(x−5).

Use equation (1) to find the product.

$\begin{matrix} (x + 5) (x - 5) = x^{2} - 5^{2} \\ = x^{2} - 25 \end{matrix}$

Therefore, the final answer is $x^{2} - 25$ .

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Find the product.
$(x + 5) (x - 5)$

Short Answer

Step by step solution

Step 1. Define an expression.

Step 2. Expand the identity, (a+b)(a−b).

Step 3. Calculate the product (x+5)(x−5).

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Find the product.(x+5)(x−5)

Short Answer

Step by step solution

Step 1. Define an expression.

Step 2. Expand the identity, (a+b)(a−b).

Step 3. Calculate the product (x+5)(x−5).

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Probability and Statistics

Pure Maths

Theoretical and Mathematical Physics

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Study anywhere. Anytime. Across all devices.

Find the product.
$(x + 5) (x - 5)$