Evaluate
-x^{6}+\left(x-5\right)^{2}
Expand
25-10x+x^{2}-x^{6}
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x^{2}-10x+25-x^{6}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-5\right)^{2}.
x^{2}-10x+25-x^{6}
Use binomial theorem \left(a-b\right)^{2}=a^{2}-2ab+b^{2} to expand \left(x-5\right)^{2}.
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