Answer
$-(x^4-8x^2-9)$
Work Step by Step
Factoring the $
-1
$, the given expression, $
-x^4+8x^2+9
,$ is equivalent to
\begin{array}{l}
-1(x^4-8x^2-9)
\\\\=
-(x^4-8x^2-9)
.\end{array}
Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)
by Bittinger, Marvin L.; Ellenbogen, David J.; Johnson, Barbara L.
Published by
Pearson
ISBN 10:
0-32184-874-8
ISBN 13:
978-0-32184-874-1
Chapter 5 - Polynomials and Factoring - 5.4 Factoring Perfect-Square Trinomials and Differences of Squares - 5.4 Exercise Set - Page 333: 109
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