College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Chapter 1 Review - Exercises - Page 170: 65


(a) $3+i$ (b) $8-i$

Work Step by Step

(a) $(2-3i)+(1+4i)=2+1+-3i+4i=3+i$ (b) $(2+i)(3-2i)=6-4i+3i-2i^{2}=6-i-2*-1=6-i+2=8-i$
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