Question
Expand the following: $\left(x^{2}+\frac{1}{x}\right)^{7}$

Answer

$\frac{1}{x^{1}} 4+7 x^{1} 1+21 x^{8}+35 x^{5}+35 x^{2}+\frac{21}{x}+\frac{7}{x^{4}}+$

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