$\int e^4dx$

$\frac{\left(m^{-2}n^3p^4\right)^{-2}\left(mn^{-2}p^3\right)^4}{\left(mn^{-2}p^3\right)^{-4}\left(mn^2p\right)^1}$

$2ydy=\left(x^2-1\right)dx$

$\left(x^2+1\right)y\left(\frac{dy}{dx}\right)+4=0$

$\lim_{x\to\infty}\left(1+2x\right)^{\left(\frac{7}{2lnx}\right)}$

$4\:x^2\:+20\:x\:+25\:=0\:$

$\left(\:+\:4\:\right)\:.\:\left(\:-\:8\:+\:5\:-\:6\:+2\:\right)\:$