Monday, June 24, 2013

Evaluate: (3-4i)(1+4i)




Using distribution we can write
%0D%0A%283-4i%29%281%2B4i%29%0D%0A

3%281%2B4i%29-4i%281%2B4i%29%0D%0A

3%2B12i-4i%2B16


19%2B8i



:) 
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