Answer
$\color{blue}{5r^{-8}(r^2-2)}$
Work Step by Step
The least exponent of the variable is $-8$.
The numerical coefficients have a greatest common factor of $5$.
Factor out $5r^{-8}$ to obtain:
$=\color{blue}{5r^{-8}(r^2-2)}$
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.6 Rational Exponents - R.6 Exercises - Page 64: 92
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