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Byju's Answer
Standard IX
Mathematics
Linear Equation in Two Variables
If x+y3-x-y3-...
Question
If (x + y)
3
− (x − y)
3
− 6y(x
2
− y
2
) = ky
2
, then k =
(a) 1
(b) 2
(c) 4
(d) 8