Evaluate
27\left(a+1\right)^{3}
Expand
27a^{3}+81a^{2}+81a+27
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27a^{3}+81a^{2}+81a+27
Use binomial theorem \left(p+q\right)^{3}=p^{3}+3p^{2}q+3pq^{2}+q^{3} to expand \left(3a+3\right)^{3}.
27a^{3}+81a^{2}+81a+27
Use binomial theorem \left(p+q\right)^{3}=p^{3}+3p^{2}q+3pq^{2}+q^{3} to expand \left(3a+3\right)^{3}.
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