Expand
x^{2}+10x+18
Evaluate
\left(x+5\right)^{2}-7
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x^{2}+10x+25-7
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+5\right)^{2}.
x^{2}+10x+18
Subtract 7 from 25 to get 18.
x^{2}+10x+25-7
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+5\right)^{2}.
x^{2}+10x+18
Subtract 7 from 25 to get 18.
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