Expand
x^{2}+8x-13
Evaluate
\left(x+4\right)^{2}-29
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x^{2}+8x+16-29
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+4\right)^{2}.
x^{2}+8x-13
Subtract 29 from 16 to get -13.
x^{2}+8x+16-29
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(x+4\right)^{2}.
x^{2}+8x-13
Subtract 29 from 16 to get -13.
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