$\int\frac{3x^2+7x-2}{x^3-x}dx$
$5a-12b+2a+b-7b-8b+b+c$
$\frac{dy}{dx}+\frac{1}{y}=2$
$x^2+10x+9=x-1$
$4\:-\:400x\:2$
$\lim_{x\to2}\left(4x-3\right)$
$x^2y'=y^2-x^2y^2$
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