If x=2 , y=1, then what is x^4 +2x^3 y -2xy^3 - y^4? – McqOptions

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1.	If x=2 , y=1, then what is x^4 +2x^3 y -2xy^3 - y^4?
A.	30
B.	89
C.	63
D.	27
Answer» E.

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