Answer
(7y-3)(7y+3)
Work Step by Step
49$y^{2}$+9=$(7y)^{2}$ +$3^{2}$
49$y^{2}$-9=$(7y)^{2}$ -$3^{2}$ =(7y-3)(7y+3)
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 6.5 - Factoring by Special Products - Exercise Set - Page 447: 34
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