Question

how do i solve x^2 -8x = -12 ?

Answer 1

move -12 to left side, gives
x^2-8x+12=0
factor out this, be
(x-2)(x-6)=0
solve for x

Answer 2

for zeroes, take each factors be zero,
x-2=0 ----> x=....?
x-6=0 ----> x= ....?