Solved

Find $( 7 + 4 i ) ^ { 2 }$

Question 108

Multiple Choice

Find $( 7 + 4 i ) ^ { 2 }$ and express the answer in the standard form of a complex number.

A) 33 $-$ 56 i
B) $-$ 33 $-$ 56 i
C) 33 i + 56
D) 33 + 56 i

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