Answer
-4$x^{2}$ + 10$y^{2}$
Work Step by Step
(4$x^{2}$ - 6xy + 9$y^{2}$) - (8$x^{2}$ - 6xy - $y^{2}$)
= 4$x^{2}$ - 6xy + 9$y^{2}$ - 8$x^{2}$ + 6xy + $y^{2}$
= -4$x^{2}$ + 10$y^{2}$
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 330: 46
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