Expand
m^{2}-8mn+16n^{2}
Evaluate
\left(4n-m\right)^{2}
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16n^{2}-8nm+m^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(4n-m\right)^{2}.
16n^{2}-8nm+m^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(4n-m\right)^{2}.
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