Evaluate
4\left(2b+3c\right)^{2}
Expand
16b^{2}+48bc+36c^{2}
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16b^{2}+48bc+36c^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(4b+6c\right)^{2}.
16b^{2}+48bc+36c^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(4b+6c\right)^{2}.
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