SOLUTION: Can you help me simplify (4+8i) * (-9 + i) Thank you

Question 76585: Can you help me simplify
(4+8i) * (-9 + i)
Thank you
Found 2 solutions by checkley75, stargrl12566:
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
(4+8i)(-9+i)
-36-72i+4i+8
-28-68i
-2(14+34i)
Answer by stargrl12566(16) (Show Source): You can put this solution on YOUR website!
All you have to do is Foil like normal and then add the like terms.
When you foil you get
-32 +4i-72i+8i^2
Add like terms
-32-68i+8i^2
i^2 is really -1 so you get
-32-68i-8
Add like terms again
-40-68i
and thats the answer
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