Answer
$=5-12i$
Work Step by Step
Use complex aritmetic rule
$(a+bi)(c+di)=(ac-bd)+(ad+bc)i$
$a=3$
$b=-2$
$c=3$
$d=-2$
$=(3· 3−(−2)(−2))+(3(−2)+(−2)· 3)i$
Doing work within the parenthesis leaves us with
$=5-12i$
Trigonometry 7th Edition
by McKeague, Charles P.; Turner, Mark D.
Published by
Cengage Learning
ISBN 10:
1111826854
ISBN 13:
978-1-11182-685-7
Chapter 8 - Section 8.1 - Complex Numbers - 8.1 Problem Set - Page 426: 59
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