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 R - Elementary Algebra Review - R.4 Polynomials - R.4 Exercise Set - Page 962: 62



Work Step by Step

Using the FOIL method, the given expression, $ (1.1x^2+5)(0.1x^2-2) ,$ is equivalent to \begin{array}{l}\require{cancel} 1.1x^2(0.1x^2)+1.1x^2(-2)+5(0.1x^2)+5(-2) \\\\= 0.11x^4-2.2x^2+0.5x^2-10 \\\\= 0.11x^4-1.7x^2-10 .\end{array}
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