Answer
$3(5r-9)$
Work Step by Step
Note that:
$15r=5(3)(r)
\\27=3(3)(3)$
Thus, the greatest common factor $3$.
Factor out the GCF to obtain:
$15r-27=3(5r-9)$
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 - R.4 Factoring Polynomials - R.4 Exercises - Page 43: 12
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