$\frac{3x}{x-1}+2=\frac{3}{x-1}$

$\lim_{x\to0}\left(\frac{\sqrt{2x+4}-2}{\sqrt{x+1}-1}\right)$

$\int24dx$

$x^2-y-2=0$

$2\left(w\:-\:6\right)\:=\:2w\:-\:12\:\cdot$

$\cos\left(x\right)^2\tan\left(x\right)-2\cos\left(x\right)\tan\left(x\right)-3\tan\left(x\right)$

$\frac{d}{dx}\:y=e^{2x}secx$