keanujones229 keanujones229

27-08-2016
Mathematics

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Coefficient of xy^6 in expansion of (2x-y^3)^3

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27-08-2016

Hello,

[tex](2x-y^3)^3=8*x^3-12*x^2*y^3+6*x*y^6-y^9[/tex]
Coefficient is 6

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