Expand
125x^{3}+75x^{2}+15x+1
Evaluate
\left(5x+1\right)^{3}
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125x^{3}+75x^{2}+15x+1
Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} to expand \left(5x+1\right)^{3}.
125x^{3}+75x^{2}+15x+1
Use binomial theorem \left(a+b\right)^{3}=a^{3}+3a^{2}b+3ab^{2}+b^{3} to expand \left(5x+1\right)^{3}.
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