SOLUTION: (1+i)(2-4i)

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Question 707448: (1+i)(2-4i)
Answer by vheroli(126) About Me  (Show Source):
You can put this solution on YOUR website!
(1+i)(2-4i)
Use FOIL method (first,out,in,last):
1*2=2
1*(-4i)=-4i
i*2=2i
i%2A%28-4i%29=+-4i%5E2
Then simplify all answers:
2-4i%2B2i-4i%5E2
=2-2i-4i%5E2
=-4i%5E2-2i%2B2 arrange by degree