Answer
$(x+7y)(x-11y)$
Work Step by Step
Step 1: $x^{2}-4xy-77y^{2}$
Step 2: $x^{2}+7xy-11xy-77y^{2}$
Step 3: $x(x+7y)-11y(x+7y)$
Step 4: $(x+7y)(x-11y)$
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 6.2 - Factoring Trinomials of the Form x2+bx+c - Exercise Set - Page 428: 28
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