Expand
25a^{2}+70a+49
Evaluate
\left(5a+7\right)^{2}
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25a^{2}+70a+49
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(5a+7\right)^{2}.
25a^{2}+70a+49
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(5a+7\right)^{2}.
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