SOLUTION: If x= -1 and y=2 what s the value of the expression 2x^3 -xy?

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Question 454431: If x= -1 and y=2 what s the value of the expression 2x^3 -xy?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
2*-1^3-(-1*2)
-2+2=0