Answer
64 - 49$x^{2}$
Work Step by Step
( 8 - 7x ) ( 8 + 7x ) the sum and difference of the same two terms
$8^{2}$ - $( 7x )^{2}$
64 - 49$x^{2}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Section 5.6 - Special Products - Exercise Set - Page 388: 50
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