Evaluate
\left(5x+1\right)^{2}
Expand
25x^{2}+10x+1
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\left(5x+1\right)^{2}
Combine 3x and 2x to get 5x.
25x^{2}+10x+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(5x+1\right)^{2}.
\left(5x+1\right)^{2}
Combine 3x and 2x to get 5x.
25x^{2}+10x+1
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(5x+1\right)^{2}.
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