Evaluate
\left(5a-1\right)^{2}+c+54b
Expand
25a^{2}-10a+54b+c+1
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25a^{2}-10a+1+54b+c
Use binomial theorem \left(p-q\right)^{2}=p^{2}-2pq+q^{2} to expand \left(5a-1\right)^{2}.
25a^{2}-10a+1+54b+c
Use binomial theorem \left(p-q\right)^{2}=p^{2}-2pq+q^{2} to expand \left(5a-1\right)^{2}.
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