$\int_{-1}^{\infty}\left(6e^{-2x-2}\right)dx$

$\left(x+2\right)\cdot\left(x+8\right)$

$\lim_{x\to\frac{\pi}{2}}\left(\frac{\ln\left(\sin\:\left(x\right)\right)}{\left(\pi\:-2x\right)^3}\right)$

$4n^2+2n+6=0$

$\left(2a+1a^3\right)$

$\frac{13-1}{8-4}$

$2\cdot\frac{dy}{dx}-\frac{1}{y}=\frac{2x}{y},\:y\left(0\right)=2$