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5 votes
I don’t understand this math at all someone please help !

I don’t understand this math at all someone please help !-example-1
User Hopeless
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8.2k points

2 Answers

5 votes
-21 is the answer!! hope it helps <3
User RonyK
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8.6k points
4 votes
I believe the answer is -21i
User IvanRF
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8.7k points