$\int\left(y^3\sqrt{y^2-4}\right)dy$

$4f.4f^7$

$\:\left(2r\:-\:5\right)\left(r\:+\:3\right)$

$\lim_{x\to\infty}\left(\frac{x}{\left(x+1\right)-\frac{1}{x+1}}\right)$

$6\:\left(x\:+\:1\right)\:+\:\left(-5\right)\:.\:\left(-4\right)\:=\:3\:\left(2x\:+\:4\right)\:-\:2\:.\:\left(-10\right)$

$\left(xy-x\right)dx+\left(xy-y\right)dy=0$

$\left(2m^2+3m^{-1}n^{-1}\right)^2$