SOLUTION: Help please! I have to simplify each expression: (1 + 2i) (6-3i) thank you

SOLUTION: Help please! I have to simplify each expression: (1 + 2i) (6-3i) thank you

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Question 527654: Help please!
I have to simplify each expression:
(1 + 2i) (6-3i)

thank you
Answer by htmentor(1343) (Show Source): You can put this solution on YOUR website!
(1+2i)(6-3i)
Use FOIL:
6 - 3i + 12i - 6i^2
Collect terms, and use the fact that i^2 = -1:
6 + 9i - -6 -> 12 + 9i
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