College Algebra (11th Edition)

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



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
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