Evaluate
\left(25x+2\right)^{2}
Expand
625x^{2}+100x+4
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4+100x+625x^{2}
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(2+25x\right)^{2}.
4+100x+625x^{2}
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(2+25x\right)^{2}.
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