Answer:
3x^2 -3
Step-by-step 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
