Answer
FALSE
Work Step by Step
$7x+21+xy+3y = 7(x+3) + y(x+3) = (7+y)(x+3)$
The factor form is $(7+y)(x+3)$
and not $ 7(x+3) + y(x+3) $
(it is a sum, not a product)
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 6 - Section 6.1 - The Greatest Common Factor - Vocabulary and Readiness Check - Page 420: 5
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