Answer
$ -16x^7$
Work Step by Step
We used: $x^n x^m = x^{n+m}$
$(-4)(4)x^{5+2} = -16x^7$
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 - R.3 Polynomials - R.3 Exercises - Page 32: 11
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