Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 5 Polynomials and Polynomial Functions - 5.4 Factor and Solve Polynomial Equations - 5.4 Exercises - Skill Practice - Page 357: 56



Work Step by Step

Let $a=x^n$, then our equation is: $a^2-2a+1=(a-1)^2$. Then plugging in $a=x^n$ we get: $x^{2n}-2x^n+1=(x^n-1)^2$
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