If 27(x + y)3 - 8(x - y)3 = (x + 5y)(Ax2 + By2 + Cxy), then what is th – McqOptions

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1.	If 27(x + y)3 - 8(x - y)3 = (x + 5y)(Ax2 + By2 + Cxy), then what is the value of (A + B - C)?
A.	13
B.	16
C.	18
D.	11
Answer» C. 18

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