Question

Factor completely 2x2 − 32.

Prime
2(x2 − 16)
2(x + 4)(x + 4)
2(x + 4)(x − 4)

Answer 1

2(x + 4)(x − 4)

Explanation:

2x^2 − 32

Factor out 2.

2( x^2 -16)

The term inside the parentheses is the difference of squares.

(a^2 - b^2) = (a-b)(a+b)

2 ( x-4)(x+4)