## Precalculus (6th Edition) Blitzer

$2x^3+11x^2+22x+15$
Simplify the expression and combine like terms; we have $2x(x^2+4x+5)+3(x^2+4x+5)=2x^3+8x^2+10x+3x^2+12x+15=2x^3+11x^2+22x+15$