$-x^2-2x+3\ge0$
$\frac{dy}{dx}=6x^2-3x+5$
$2n-3-n^2$
$\log9\left(81\right)$
$\left(5w+\frac{1}{2}\right)x\left(5w-\frac{1}{2}\right)$
$2+3x<x-4$
$\lim_{x\to1}\left(\frac{x^8-1}{x^6-1}\right)$
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