$\left(x-2\right)\left(x+3\right)\ge\:0$
$\frac{x^3+x-1}{x^2+3}$
$\frac{dy}{dx}\left(1+x^2\right)^{tan-1x}$
$m^2+mn+mx+mx$
$2m^2+\left(m^2-1\right)^2=\left(m^2+1\right)^2$
$ln\left(z^2\right)$
$\lim_{x\to-2}\left(\frac{x^3+3x+2x}{x+2}\right)$
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