Question

write the expansions of (x^2+y)^3 ​

Answer 1

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${ {(x}^{2} + y) }^{3} \\ = > { {(x}^{2}) }^{3} + {y}^{3} + 3 {x}^{2} y( {x}^{2} + y) \\ = > {x}^{6} + {y}^{3} + 3 {x}^{4} y + 3 {x}^{2} {y}^{2}$

This is by formula,

${(x + y)}^{3} = {x}^{3} + {y}^{3} + 3xy(x + y)$