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Chapter 7: Q21. (page 463)

Find each product.

(2b鈭�5)(2b+5)

Short Answer

Expert verified

The required product is represented by4b2鈭�25.

Step by step solution

01

Step 1. Determine the identity of polynomial that can be used.

The provided polynomial indicates the left side of the identitya+ba鈭�b=a2鈭�b2 so this identity can be used.

02

Step 2. Take the help of obtained identity.

Substitute 2b in place of a and 5 in place of b into the right side of obtained identity.

2b2鈭�52

03

Step 3. Perform the simplification.

Write the exponential terms in simplest form

4b2鈭�25

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Most popular questions from this chapter

Read each question. Then fill in the correct answer on the answer document provided by your teacher or on a sheet of paper.

Which inequality is shown in the graph?

Fy鈮�鈭�23x鈭�1

Gy鈮�鈭�34x鈭�1

Hy鈮�鈭�23x+1

Jy鈮�鈭�34x+1

Find each product.

aa2+2a鈭�10

Express the area of a triangle with height of4a and a base of5ab2 as a monomial.

Determine whether the given expression is a monomial or not.

xyz22

Determine whether the given expression is a monomial. Write yes or no.

Explain your reasoning.

15
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