Question

PLEASE HELLLPP verify 3 (x-1) (x+1)

Answer 1

3x^2 -3

Explanation:

3 (x-1) (x+1)

FOIL the terms in parentheses

first x*x = x^2

outer x*1 =x

inner -1 *x = -x

last -1 *1 = -1

Add them together

x^2 -x+x -1 = x^2 -1

3 ( x^2 -1)

Now multiply by 3

3x^2 -3