Ceiling Cat
Favorite Answer
Make your equation equal to zero by subtracting 12x from both sides.
0 = x^2 - 12x + 32
Then factorize. You need two numbers that multiply to give 32 and add to give -12. Eight and four will work.
0 = (x - 4)(x - 8)
x has two solutions, x = 4 and x = 8