Introductory Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-805-X
ISBN 13: 978-0-13417-805-9

Chapter 5 - Section 5.4 - Polynomials in Several Variables - Exercise Set - Page 376: 60

Answer

$25a^4b-a^2$

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, $ (5a^2b+a)(5a^2b-a) ,$ is \begin{array}{l}\require{cancel} (5a^2b)-(a)^2 \\\\= 25a^4b-a^2 .\end{array}
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