$2p^3q\:+\:2p^2q^2\:+\:2pq^3\:$

$\left(\frac{-56ab^{-2}}{-8ab}\right)$

$\left(25^5\right)^2$

$\frac{d}{dx}\left(e^{-x}+\ln\left(2x\right)^{0.5}\right)$

$\frac{dx}{dy}=\frac{y^2}{x^3}$

$\left(ab\right)^2\left(ab\right)^3$

$\lim_{x\to0}\left(\frac{3x^2+8x+20}{x-5}\right)$