Question 623846
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Hi,  
(x + 2y^2)^3       |||(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3
{{{x^3 + 3x^2(2*y^2) + 3x(2y^2)^2 + (2y^2)^3   }}}  
 x^3 + 6x^2y^2 + 12xy^4 + 8y^6