$-10=x^2-8x+2$
$\int\frac{1}{\sqrt{x^2-16x}}dx$
$sin\left(x-6\pi\right)=cos\left(\frac{\pi}{2}-x\right)$
$8^{0.4}$
$u^8-49w^6$
$169m^2\:+\:n^2\:-\:26mn$
$\frac{8+2i}{6-4i}$
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