Elementary and Intermediate Algebra: Concepts & Applications (6th Edition)

Published by Pearson
ISBN 10: 0-32184-874-8
ISBN 13: 978-0-32184-874-1

Chapter 4 - Polynomials - Test: Chapter 4: 40

Answer

$9x^{10}-y^2$

Work Step by Step

Using $(a+b)(a-b)=a^2-b^2$ or the product of the sum and difference of like terms, the product of the given expression, $ (3x^5-y)(3x^5+y) ,$ is \begin{array}{l}\require{cancel} (3x^5)^2-(y)^2 \\\\= 9x^{10}-y^2 .\end{array}
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