If 8 x y 3 27 xy 3 July 8, 2019 16 32 64 128 If 8(x+y)^3-27(x-y)^3=(5y-x)(ax^2+by^2+cxy) then what is the value of (a+b-c) If 3 − = 12 x y what is the value of 8 2 x y If (2x)(2y) = 8 and (9x)(3y) = 81 then (x y) =
