Answer
$7y(x-3)$
Work Step by Step
7y is a common factor of both of the terms.
$7xy-21y=7y(x-3)$
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 10 - Section 10.1 - Finding Monomial Factors - Exercise - Page 345: 10
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