$-x^3+2x^2+3x\:=\:0$
$2n=100$
$9x+4=8\left(x-6\right)+1$
$\int e^{3\sqrt{t}}dt$
$\frac{x^3+8}{x^2+4}$
$\lim_{x\to2}\left(\ln\left(x+z\right)\right)$
$\lim_{x\to0}\left(\frac{\tan\left(x\right)}{1+\cos\left(x\right)}\right)$
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