Question

Simplify the following expression. (4x − 8)(4x + 8)

Answer 1

16x2 − 64

Explanation:

Plato

Answer 2

16x^2 - 64

Explanation:

(4x − 8)(4x + 8)

We recognize that this is the difference of squares

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

=(4x)^2 - 8^2

=16x^2 - 64