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):

2 (x + 2) (x - 1)

5x+2x=49

7x=49

x=7. 35 apples

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