Answer
$$z^5(2z-7)(2z+7)$$
Work Step by Step
We have $$4z^7-49z^5$$
Factorizing $$z^5(4z^2-49)$$ $$z^5(2z-7)(2z+7)$$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 5 - Review - Page 332: 153
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