Evaluate
100\left(a+3b\right)^{2}
Expand
100a^{2}+600ab+900b^{2}
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100a^{2}+600ab+900b^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(10a+30b\right)^{2}.
100a^{2}+600ab+900b^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(10a+30b\right)^{2}.
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