SOLUTION: How do you simplify this? 2(6 + 5i) - (2 + 1i)(3 + 6i)

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Question 946792: How do you simplify this?
2(6 + 5i) - (2 + 1i)(3 + 6i)

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

2%286+%2B+5i%29+-%282+%2B+1i%29%283+%2B+6i%29
12+%2B+10i+-%286+%2B+12i%2B3i%2B6i%5E2%29 ...recall that i%5E2=-1
12+%2B+10i+-6+-+12i-3i-6%28-1%29
12+%2B+10i+-cross%286%29+-+15i%2Bcross%286%29
12+-+5i