Evaluate
\frac{\left(10n+1\right)^{3}}{125}
Expand
8n^{3}+\frac{12n^{2}}{5}+\frac{6n}{25}+\frac{1}{125}
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8n^{3}+\frac{12}{5}n^{2}+\frac{6}{25}n+\frac{1}{125}
Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} to expand \left(2n+\frac{1}{5}\right)^{3}.
8n^{3}+\frac{12}{5}n^{2}+\frac{6}{25}n+\frac{1}{125}
Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} to expand \left(2n+\frac{1}{5}\right)^{3}.
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