Question

x + y)³ - ( x- y)³= ................................................. *

1 point

3xy

6X²y + 2y³

6xy - 2y

9xy

​

Answer 1

Answer:

Step-by-step explanation:

Given Equation is (x+y)^3 - (x-y)^3 - 6y(x^2 - y^2).

x^3 + 3x^2y + 3xy^2 + y^3 - (x^3 - 3x^2y+3xy^2 - y^3) - 6y(x^2-y^2)

x^3 + 3x^2y + 3xy^2 + y^3 - x^3 + 3x^2y - 3xy^2 + y^3 - 6x^2y + 6y^3

8y^3.

Now,

8y^3 = ky^2

8y = k.

Answer 2

Answer:

option b ...

Step-by-step explanation:

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