$\frac{dy}{dx}=cu\left(\ln\left(n\right)-\ln\left(u\right)\right)$
$\lim_{x\to0}\left(\frac{10x}{\sqrt{2x+9}-3}\right)$
$2x+5<8$
$4z\left(z-2\right)^2$
$\frac{2}{x+2}-\frac{3}{2x-5}$
$\:x^2-6\cdot x+10=0$
$\left(x+32\right)\left(x+20\right)$
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