Question

Simplify : (x + y)³ - (x - y)³​

Answer 1

Step-by-step explanation:

Answer

=(x+y)

3

−(x−y)

3

−6y(x

2

−y

2

)

=(x+y)

3

−(x−y)

3

−6y(x−y)(x+y)

=(x+y)

3

−(x−y)((x−y)

2

+6y(x+y))

=(x+y)

3

−(x−y)(x

2

+y

2

−2xy+6xy+6y

2

)

=(x+y)

3

−(x−y)(x

2

+7y

2

+4xy)

=x

3

+y

3

+3x

2

y+3xy

2

−x

3

−7xy

2

−4x

2

y+x

2

y+7y

3

+4xy

2

=8y

3

Answer 2

Answer:

y^6

I hope it help you..

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