Answer
$26+7i$
Work Step by Step
Solve.$(3-4i) (2+5i)$
Need to drop the parentheses and multiply the terms.
we have, $=3 (2+5i)-4i(2+5i)$
or, $=6+15i-8i-20i^2$
Since, $i^2=-1$
Hence,
$=26+7i$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 7 - Test - Page 578: 27
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