$\left(x-2\right)\left(x-1\right)\left(x+2\right)\left(x+3\right)$

$\frac{-16a^8b^{12}}{32a^6b^{15}}$

$\frac{\csc^2\left(x\right)}{\cot\left(x\right)}=\tan\left(x\right)+\cot\left(x\right)$

$9c^6\cdot3c^6$

$\frac { x ^ { 2 } } { 2 x ^ { 2 } - 2 x - 4 }$

$15x-x$

$\frac{dy}{dt}=2y\left(1-\frac{y}{10}\right)$