( 8 + 1,3 n ) ^ { 2 }
Evaluate
\left(\frac{13n}{10}+8\right)^{2}
Expand
\frac{169n^{2}}{100}+\frac{104n}{5}+64
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64+20,8n+1,69n^{2}
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(8+1,3n\right)^{2}.
64+20,8n+1,69n^{2}
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(8+1,3n\right)^{2}.
Examples
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