## Algebra: A Combined Approach (4th Edition)

$(x-3)(x-4)$
$-7x+12+x^2$ $x^2-7x+12$ Factors of 12: -1 and -12, -2 and -6, -3 and -4, 1 and 12, 2 and 6, 3 and 4 $x^2-7x+12$ $(x-3)(x-4)$ $x*x+x*-4+x*-3+(-3)(-4)$ $x^2-4x-3x+12$ $x^2-7x+12$