SOLUTION: Can you help me solve. 4x^4 - 3xy^3 when x = -1 and y= -2 thanks

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Question 56472: Can you help me solve.
4x^4 - 3xy^3 when x = -1 and y= -2
thanks
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
4x^4 - 3xy^3 when x = -1 and y= -2
=4 (-1)^4 - 3 (-1)(-2)^3
=4(1) - (-1)(-8)
=4-8
=-4
Cheers,
Stan H.