Expand
49p^{2}-14pu+u^{2}
Evaluate
\left(u-7p\right)^{2}
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u^{2}-14up+49p^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(u-7p\right)^{2}.
u^{2}-14up+49p^{2}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(u-7p\right)^{2}.
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