Evaluate
\left(x-7\right)^{2}
Expand
x^{2}-14x+49
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x^{2}-14x+49-0
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-7\right)^{2}.
x^{2}-14x+49+0
Multiply -1 and 0 to get 0.
x^{2}-14x+49
Add 49 and 0 to get 49.
x^{2}-14x+49-0
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-7\right)^{2}.
x^{2}-14x+49+0
Multiply -1 and 0 to get 0.
x^{2}-14x+49
Add 49 and 0 to get 49.
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Limits
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