$3x^2+15x$
$\lim_{x\to-1}2\pi$
$x^2+34x+289$
$\left(ab-1\right)\left(ab+9\right)$
$\frac{d}{dx}2x\sqrt{y}+4y=6$
$x^2-3x-2>0$
$\arccsc\left(x\right)=\arcsin\left(\frac{1}{x}\right)$
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