Answer
$15(r-3)$
Work Step by Step
The greatest common factor of $15r-45$ is 15.
Therefore, $15r-45=15\times r-15\times3=15(r-3)$.
Intermediate Algebra (12th Edition)
by Lial, Margaret L.; Hornsby, John; McGinnis, Terry
Published by
Pearson
ISBN 10:
0321969359
ISBN 13:
978-0-32196-935-4
Chapter 5 - Section 5.1 - Greatest Common Factors and Factoring by Grouping - 5.1 Exercises - Page 329: 10
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