Precalculus (6th Edition)

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: 12

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: $15r-27=3(5r-9)$
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