$45+45+16+25+1+100$
$\:x^2+16x+64=0$
$\left(1+a^3\right)\left(1+a\right)$
$\frac{x^2}{x^4-2x^2-8}$
$4x^2-4y^2$
$\int\frac{x-1}{\left(x^2-16\right)}\:dx$
$8\cos\left(5\pi+\frac{3\pi}{2}\right)-9$
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