Answer
$\color{blue}{\huge{x^3 +5x}}$
Work Step by Step
$x(x^2 + 5) \ne x^3 +5$
Lets work this through.
$\color{blue}{x}(x^2 + 5) = \color{blue}{x}(x^2) +\color{blue}{x}(5)$
$x(x^2) +x(5) = x^3 +5x$
$\color{blue}{\huge{x^3 +5x}}$
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 84: 117
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