Answer
$x^{4}$-2$x^{2}$+1
Work Step by Step
($x$+1)($x$+1)($x$-1)($x$-1)
=($x^{2}$+2$x$+1)($x^{2}$-2$x$+1)
=$x^{4}$-2$x^{3}$+$x^{2}$+2$x^{3}$-4$x^{2}$+2$x$+$x^{2}$-2$x$+1
=$x^{4}$-2$x^{2}$+1
College Algebra (11th Edition)
by Lial, Margaret L.; Hornsby John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671791
ISBN 13:
978-0-32167-179-0
Chapter R - Section R.3 - Polynomials - R.3 Exercises - Page 29: 57
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