Answer
$-16 + 16i$
Work Step by Step
Subtract each term of the subtrahend
$=-7 + 5i - 9 - (-11i)
\\=-7 + 5i - 9 +11i$
Regroup then simplify by combining like terms to obtain
$=(-7 -9) + (5i+11i)
\\= -16 + 16i$
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: 26
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