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 - Page 300: 32



Work Step by Step

Using $(a+b)(c+d)=ac+ad+bc+bd$ or the product of 2 binomials, the product of the given expression, $ (3b+5)(2b-1) ,$ is \begin{array}{l}\require{cancel} 3b(2b)+3b(-1)+5(2b)+5(-1) \\\\= 6b^2-3b+10b-5 \\\\= 6b^2+7b-5 .\end{array}
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