If (x+y)^3-(x-y)^3-6 y (x^2-y^2 )=k y^3, then k= - Vidyadip

MCQ

If $(x+y)^3-(x-y)^3-6 y\left(x^2-y^2\right)=k y^3$, then $k=$

A
1
B
2
C
4
✓
8

✓

Answer

Correct option: D.

8

d

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