SOLUTION: (7+6i)(9+i)multiply. i can't seem to grasp the concept here. Please help

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Question 710166: (7+6i)(9+i)multiply. i can't seem to grasp the concept here. Please help
Answer by rfer(16322)   (Show Source): You can put this solution on YOUR website!
63+7i+54i+6i^2=
63+61i+6i^2

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