$\frac{2x-2}{x+3}$
$y^2+9y+14$
$\frac{x^3-4x^2-9}{x-3}$
$x+30>0$
$18.003\cdot219$
$x\sqrt{x^2}+1$
$\lim_{x\to2}\left(\frac{x^3-8}{4x^3-x-29}\right)$
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