$x-9<-5$
$\int\frac{3x}{\left(x^3+x\right)}dx$
$6m+6$
$2x^2+8x-5$
$\lim_{x\to-2}\left(\frac{x^3-x^2-x+10}{x^2+3x+2}\right)$
$x^2\:+22+\:64\:\:$
$ex^2+x^3$
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