$x^2+x-6\le0$
$1-20+1-198$
$\sqrt[3]{d^4}$
$\left(3x^2-7y\right)\left(5x-2y^2\right)$
$cos^4x\:csc^2x$
$p^4-p^2-p+1$
$\lim_{x\to1}\left(\frac{x^{25}-1}{x^{13}-1}\right)$
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