Evaluate
\left(n+1\right)^{2}
Expand
n^{2}+2n+1
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\left(n+1\right)^{2}
Multiply n+1 and n+1 to get \left(n+1\right)^{2}.
n^{2}+2n+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(n+1\right)^{2}.
\left(n+1\right)^{2}
Multiply n+1 and n+1 to get \left(n+1\right)^{2}.
n^{2}+2n+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(n+1\right)^{2}.
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