Question

Which of the following are solutions to the quadratic equation below? check all that apply x^2+2x-8=0

a.2
b.8
c.6
d.1
e.-4
f.-1

Answer 1

a. 2

e. -4

Explanation:

The equation factors as ...

(x +4)(x -2) = 0

The solutions are the values of x that make the factors be zero: -4 and +2.