SOLUTION: help! how would you work out 2- 4i over 1+ 3i

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Question 113126: help!
how would you work out 2- 4i over 1+ 3i
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
2- 4i over 1+ 3i
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Multiply numerator and denominator by 1-3i to get:
[(2-4i)(1-3i)]/[1^2-(3i)^2]
= [2-10i-12]/[10]
= [-10-10i]/10
= -1-i
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Cheers,
Stan H.