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Multiplying Complex Numbers
Grade Level
ACT Prep
ACTM.062 Multiplying Complex Numbers
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Skill Level
🔴 Hard
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After distributing in (-9i)(-2 - 4i) and using i
2
= -1, what is the product?
A
36 - 18i
B
-36 + 18i
C
-36 - 18i
D
36 + 18i
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