Evaluate
\left(5b+8\right)^{2}
Expand
25b^{2}+80b+64
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64+80b+25b^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(8+5b\right)^{2}.
64+80b+25b^{2}
Use binomial theorem \left(p+q\right)^{2}=p^{2}+2pq+q^{2} to expand \left(8+5b\right)^{2}.
Examples
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