$\int x^5\left(x^6+1\right)^2dx$

$\left(4xy-2z\right)^3$

$\frac{-2x^2-1}{2}+\frac{x-2}{3}\le-x^2+\frac{1}{4}$

$\int\frac{x^4}{x^5+7}dx$

$2\:\left(\:y\:-\:1\:\right)\:+\:\left(\:y\:+\:3\:\right)\:=\:5\:\left(\:y\:+\:1\:\right)\:\:\:$

$x^4+x^3-12x^2$

$\lim_{x\to2}\left(\left(x^2+4x-3\right)\right)$