Answer
$-6+10i$.
Work Step by Step
Write the terms as a product.
$=(2i)(5+3i)$
Use the distributive property.
$=(2i)(5)+(2i)(3i)$
Multiply.
$=10i+6i^2$
Use $i^2=-1$.
$=10i+6(-1)$
Simplify.
$=10i-6$
$=-6+10i$.
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 - Section 7.7 - Complex Numbers - Exercise Set - Page 571: 123
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