Question

What are the zeros of f(x) = (x - 2)(x + 7)? Select all that apply.

A. X= -7
B. X = -2
C. X = 2
D. X = 7

Answer 1

Zeros happen when f(x) = 0. There are two zeros in the given function:

• when (x - 2) = 0
• when (x + 7) = 0

Therefore solve both equations above and you'll get:

• Zero #1 = 2
• Zero #2 = -7

Answer 2

2 = x -7 = x

Explanation:

f(x) = (x - 2)(x + 7)

y = (x - 2)(x + 7)

Set y = 0

0 = (x - 2)(x + 7)

Using the zero product property

0 = x-2 0 = x+7

2 = x -7 = x