Question

Which of the following correctly factors the expression −20x+4y−2?

A

4(−5x+4y+2)


B

−2(10x+2y+1)


C

−20(x−4y+2)


D

2(−10x+2y−1)

Answer 1

D
`2(-10x+2y-1)`

Explanation:

Find the common factor between all of the terms (2):

Divide all terms by this factor:

`2(-10x+2y-1)`