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Simplify the Complex Number and Write It in Standard Form $3 i ^ { 2 } - 7 i ^ { 3 }$

Question 45

Multiple Choice

Simplify the complex number and write it in standard form. $3 i ^ { 2 } - 7 i ^ { 3 }$

A) $- 7 + 3 i$
B) $3 + 7 i$
C) $- 3 - 7 i$
D) $- 3 + 7 i$
E) $3 - 7 i$

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