SOLUTION: write in a+bi form- a(3+7i)+(5+i)(-3+6i)

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Question 256436: write in a+bi form- a(3+7i)+(5+i)(-3+6i)
Answer by drk(1908)   (Show Source): You can put this solution on YOUR website!
The question was:

so, first, we use foil and get


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