Question

Simplify the following expression.

(4x - 7)(4x + 7)
A.
16x2 - 14
B.
16x2 - 56x - 49
C.
16x2 + 56x - 49
D.
16x2 - 49

Answer 1

D

Explanation:

16x2 - 49

Answer 2

D

Explanation:

Use the FOIL method and multiply it out, and you should get

16x^2+28x-28x-49

Simplify that and you get the answer.