Question

1. If the area of a rectangle is represented by x^2+ 8x + 15 and its length is represented by x

+5, which expression represents the width of the rectangle?

Answer 1

(x + 3)

Explanation:

a = x^2+ 8x + 15

Factor

a = (x + 5)(x + 3)

if (x + 5) is the length

then (x + 3) is the width