Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 8 - Radical Functions - Chapter Review Exercises - Page 671: 86



Work Step by Step

$(2.3+4.1i)(3.7-9.2i)$ =$2.3(3.7-9.2i)+4.1i(3.7-9.2i)$ =$8.51-21.16i+15.17i-37.72i^{2}$ =$8.51-21.16i+15.17i-37.72(-1)$ =$8.51-5.99i+37.72$ =$46.23-5.99i$
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