Question

What are the zeros of this quadratic function?

f(x) = (x − 7)(x + 8)

A.
x = 0 and x = 7
B.
x = 7 and x = -8
C.
x = 0 and x = -8
D.
x = -7 and x = 8

Answer 1

B. x = 7 and x = -8

Explanation:

f(x) = (x − 7)(x + 8)

x - 7 = 0

x = 7

x + 8 = 0

x = -8

Answer 2

D. x =7 and x = - 8

Explanation: