$5x^2\le x+10$
$x^2-18x-19$
$\lim\:_{x\to\:2}\left(\frac{2x-4}{x^2-4x+4}\right)$
$4\left(1+sin\left(2x\right)\right)$
$\left(3n+5w\right)^3$
$2x-3>9$
$\frac{3x^4-2x^3+3}{x-3}$
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