SOLUTION: help me with this problem a^3+2abc-2c^2 for a=3, b=9, and c=-2

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Question 166934: help me with this problem
a^3+2abc-2c^2 for a=3, b=9, and c=-2
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
a^3+2abc-2c^2
a=3, b=9, and c=-2
3^3+2*3*9*-2-2(-2)^2
27-108-2*4
-81-8
-89 answer.