Question 52796
This is also called "factoring"

a) {{{40z^2-42z+9 = (10z-3)(4z-3)}}}
b) {{{32y^2-68y+21 = (8y-3)(4y-7)}}}
c) {{{36y^2-36y+9 = 9(4y^2-4y+1)}}} = {{{9(2y-1)(2y-1)}}}
d) {{{12z^2-4z-65 = (6z+13)(2z-5)}}}
e) {{{32x^2-52x+15 = (8x-3)(4x-5)}}}