Expand
27k^{3}+27k^{2}+9k+1
Evaluate
\left(3k+1\right)^{3}
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27k^{3}+27k^{2}+9k+1
Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} to expand \left(3k+1\right)^{3}.
27k^{3}+27k^{2}+9k+1
Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} to expand \left(3k+1\right)^{3}.
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