Answer
$16x^{2}$ - 9$z^{2}$
Work Step by Step
(4x-3z)(4x+3z)=$(4x)^{2}$ - $(3z)^{2}$ =
=$16x^{2}$ - 9$z^{2}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 9 - Cumulative Review - Page 676: 18
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