Answer
$2 + 5i$
Work Step by Step
Regroup then simplify by combining like terms to obtain
$=(-2+4) + (6i-i)
\\=2 + 5i$
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 570: 20
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