Answer:

2x-1

I hope it should...

Answer:

A. (2x−1)

Step-by-step explanation:

Check :

F - (2x) (2x) = 4x^2

O- (2x) (-1) = - 2x

I - (-1) (2x) = - 2x

L - (-1) (-1) = 1

4x^2−2x-2x+1

4x^2−4+1