Answer
$\color{blue}{7q^3-9q^2-8q+9}$
Work Step by Step
Add by combining like terms to obtain:
$=(3q^3+4q^3) -9q^2-8q+(6+3)
\\=(3+4)q^3-9q^2-8q+9
\\=\color{blue}{7q^3-9q^2-8q+9}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter R - Review of Basic Concepts - Chapter R Test Prep - Review Exercises - Page 83: 53
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