Answer
$2x^3+11x^2+22x+15$
Work Step by Step
Simplify the expression and combine like terms; we have $2x(x^2+4x+5)+3(x^2+4x+5)=2x^3+8x^2+10x+3x^2+12x+15=2x^3+11x^2+22x+15$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter P - Section P.3 - Radicals and Rational Exponents - Exercise Set - Page 48: 144
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