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Chapter 7: Q52. (page 462)

Find the product.

(x+5)(x鈭�5)

Short Answer

Expert verified

The final answer is x2鈭�25.

Step by step solution

01

Step 1. Define an expression.

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

02

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

a+ba鈭�b=a2鈭�b2鈥夆赌夆赌夆赌夆赌夆赌夆赌夆赌�鈥�鈥�鈥�.1

03

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

Use equation (1) to find the product.

x+5x鈭�5=x2鈭�52=x2鈭�25

Therefore, the final answer is x2鈭�25.

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Choose a term from the Key Vocabulary list above that best describes the given expression.

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