$-4x^3y^3\cdot5xy^3$

$\:-7\:+\:-8\:x\:6\:-\:\left(\:5\:-\:\left(-3\right)2\:\right)\:+\:\left(\:4\:+\:-48\::\:6\right)\:+\:34\:$

$\int\left(sin9x\right)^3dx$

$\frac{\tan\left(2x\right)\left(1+\tan\left(x\right)\right)}{\tan\left(x\right)}=\frac{2}{1-\tan\left(x\right)}$

$7x^2\:+\:7x$

$\left(x+2y-3z\right)\left(5y-3x\right)$

$4x^6-16$