$x-5<x+7$

$3x^2=-6x$

$\frac{d}{dx}\left(\frac{-1}{\sin\left(x\right)}\right)$

$\sqrt[18]{18^9}$

$8\cot\left(\arctan\left(2\right)\right)-6\cos^2\left(\arcsin\left(\frac{2}{3}\right)\right)$

$\left(f\:+\:8\right)\:\left(f\:-\:3\right)\:$

$\frac{dy}{dx}=\frac{y}{100+2t}=7$