CPM Homework Help : GB8I Problem 5-79

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Home > GB8I > Chapter 5 Unit 6 > Lesson INT1: 5.2.3 > Problem 5-79

5-79.

Compute the following products.

$(4x + 5)(4x − 5)$
Hint (a):
Review the Math Notes box in Lesson 3.2.2.

$(4x + 5)^2$
Hint (b):
Recall that $(4x + 5)^2$ is the equivalent to $(4x + 5)(4x + 5)$ .
Answer (b):
$16x^2 + 40x + 25$

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