Answer
64$y^{2}$-81
Work Step by Step
(8y+9)(8y-9)=$(8y)^{2}$-$9^{2}$=64$y^{2}$-81
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 6.4 - Factoring Trinomials of the Form ax2+bx+c by Grouping - Exercise Set - Page 441: 56
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