Simplify : (x+y)^3-(x-y)^3-6y(x^2-y^2) please answer ​

Question

Simplify : (x+y)^3-(x-y)^3-6y(x^2-y^2)

please answer ​

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Evelyn 2 weeks 2021-09-12T19:01:28+00:00 2 Answers 0 views 0

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    2021-09-12T19:03:19+00:00

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

    let..(x+y) be z

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

    =. z^3-z^3-6y*z^2 ans

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