Expand
x^{2}-8x+19
Evaluate
\left(x-4\right)^{2}+3
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x^{2}-8x+16+3
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-4\right)^{2}.
x^{2}-8x+19
Add 16 and 3 to get 19.
x^{2}-8x+16+3
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-4\right)^{2}.
x^{2}-8x+19
Add 16 and 3 to get 19.
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