### Home > INT1 > Chapter 5 > Lesson 5.2.3 > Problem5-79

5-79.

Compute the following products.

1. $(4x + 5)(4x − 5)$

Review the Math Notes box in Lesson 3.2.2.

1. $(4x + 5)^2$

Recall that $(4x + 5)^2$ is the equivalent to $(4x + 5)(4x + 5)$.

$16x^2 + 40x + 25$