I will show how
2*36=71
72
what factors of 72 add to -27
-3 and -24
split it up like that
2x^2-24x-3x+36
gropu first 2 and last 2
(2x^2-24x)+(-3x+36)
undistribute common term
(2x)(x-12)+(-3)(x-12)
we can reverse distribute, remember ab+ac=a(b+c), theh (x-2) is the a
(2x-3)(x-12)
