What is the factorization of x2+7x−8?
(x-8) (x+1)
(x+5) (x-9)
(x+7) (x-2)
(x+8) (x-1)
x2+7x−8
= x2+8x−x−8
= x(x+8) - (x+8)
= (x+8) (x-1)
Factorize: x2−7x+12.