Question

Which expression is the result of factoring the expression below by taking out its greatest common factor?

4x^2+16x-4=?
Choose 1 answer:
A. 2x(2x^2+8x−2)
B. 2(2x^2+8x−2)
C. 4x(x^2+4x−1)
D. 4(x^2+4x−1)

Answer 1

D. 4 ( x² + 4 x - 1 )

Explanation:

4 x ² + 16 x - 4

Taking out common factor = 4

4 ( x² + 4 x - 1 )

Answer 2

4(x^2 +4x-1)

Explanation:

4x^2+16x-4

Factor out a 4

4(x^2 +4x-1)