## Algebra and Trigonometry 10th Edition

$2(x+1)(x-3)^2-3(x+1)^2(x-3)$ (Take out common factor (x+1)(x-3) ) =$(x+1)(x-3)(2(x-3)-3(x+1))$ =$(x+1)(x-3)(2x-6-3x-3)$ =$(x+1)(x-3)(-x-9)$ =$-(x+1)(x-3)(x+9)$