Intermediate Algebra (12th Edition)

Published by Pearson
ISBN 10: 0321969359
ISBN 13: 978-0-32196-935-4

Chapter 4 - Section 4.4 - Multiplying Polynomials - 4.4 Exercises: 71

Answer

$0.1x+0.63x-0.13$

Work Step by Step

Using $(a+b)(c+d)=ac+ad+bc+bd$ or the FOIL Method, the product of the binomials in the given expression, $ (0.2x+1.3)(0.5x-0.1) ,$ is \begin{array}{l}\require{cancel} 0.2x(0.5x)+0.2x(-0.1)+1.3(0.5x)+1.3(-0.1) \\\\= 0.1x-0.02x+0.65x-0.13 \\\\= 0.1x+0.63x-0.13 .\end{array}
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