SOLUTION: (2+3i) (3-2i)

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Question 1102975: (2+3i) (3-2i)
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


Multiply the same way you multiply binomials --
e.g., %28x-3%29%282x%2B5%29+=+2x%5E2%2B5x-6x-15+=+2x%5E2-x-15

The difference is that now you will be able to combine more like terms, because i%5E2=-1.

%282%2B3i%29%283-2i%29+=+6-4i%2B9i-6i%5E2+=+6-4i%2B9i-6%28-1%29+=+6-4i%2B9i%2B6+=+12%2B5i