Question

What are the solutions to the equation (x – 6)(x + 8) = 0?
a. x = –6 or x = 8
b. x = –6 or x = –8
c. x = 6 or x = –8
d. x = 6 or x = 8

Answer 1

Okay. Step 1 is to use the values in the answers for x. From the choices available, we see that x can equal more than one value. I'll help you with "A"

First, insert -6 for every x.
(-6 - 6)(-6 + 8) = -18, not 0. Therefore, both 'A' and 'B' cannot be the answer.