Which expression is equivalent to

2x2 + 2x-4?

2x2 - 4x + 2

X+2

X-1

X+2

-2

X + 2

x-2

2 (x + 2) (x - 1)

Step-by-step explanation:

Simplify the following:

2 x^2 + 2 x - 4

Factor 2 out of 2 x^2 + 2 x - 4:

2 (x^2 + x - 2)

The factors of - 2 that sum to 1 are 2 and - 1. So, x^2 + x - 2 = (x + 2) (x - 1):

Answer: 2 (x + 2) (x - 1)

2 (x + 2) (x-1)

Explanation