$\int\frac{x^3+x-2}{x+1}dx$
$2xy\:+\:xy^2\:-x^3\:=\:4$
$128a^3-250b^3$
$2\left(1-2x\right)=3\left(2x-6\right)$
$3sec^2x\:-\:2tan^{2\:}x\:-\:4\:=\:0\:$
$\frac{d}{dx}\left(\log\left(\frac{9}{2}\right)\right)$
$x^2-12x-133=0$
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