## Introductory Algebra for College Students (7th Edition)

If we take the GCF to be negative, $-4x$ , then $-4x^{2}+12x=(-4x)(x)+(-4x)(-3)=-4x(x-3)$ (OK) If we take the GCF to be positive, $4x$, then $-4x^{2}+12x=4x(-x)+4x(3)=4x(-x+3)$ (OK)