Question

Presciso da contaa !!

Answer 1

A=2x^2-4x+4x-8 = 2x^2-8
B=18x^2+30x-3x-6 = 18x^2+27x-6
c=x^2+9x+x+9=x^2+10x+9
d=6x^2+18x-3x-9=6x^2+15x-9
e=4x^2+7x-24x-42=4x^2-17x-42
f=5x^2+6x-10x-12=5x^2-4x-12