Question

Which are solutions of the equation x2 – 16 = 0? Check all that apply.

x = –8
x = –4
x = –2
x = 2
x = 4
x = 8

Answer 1

4, -4

Explanation:

x^2 - 16 = 0

(x - 4)(x + 4) = 0

x - 4 = 0

x = 4

x + 4 = 0

x = -4