Evaluate
4\left(n-1\right)^{2}
Expand
4n^{2}-8n+4
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\left(2n-2\right)^{2}
Multiply 2n-2 and 2n-2 to get \left(2n-2\right)^{2}.
4n^{2}-8n+4
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2n-2\right)^{2}.
\left(2n-2\right)^{2}
Multiply 2n-2 and 2n-2 to get \left(2n-2\right)^{2}.
4n^{2}-8n+4
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(2n-2\right)^{2}.
Examples
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Limits
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