Answer
$$(5x^2+9)(x+1)(x-1)$$
Work Step by Step
We have $$5x^4+4x^2-9$$
Factorizing $$(5x^2+9)(x^2-1)$$ $$(5x^2+9)(x+1)(x-1)$$
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 332: 154
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