$\frac{x^3-2x-11x+12}{3}$

$4-p-2x+3p-7x$

$\frac{d}{dx}\left(\frac{\left(7x^5cosx\right)}{\left(x-1\right)^{\frac{2}{3}}e^{x+1}}\right)$

$\frac{dy}{dx}\left(\frac{x^2\sqrt{3x-2}}{\left(x+1\right)^2}\right)$

$-\left(-10\right)-\left(-20\right)-\left(-15\right)$

$\frac{\left(7x-3\right)^2}{x-1}$

$4\:+\:3\:x\:4\:-\:8\:x\:2$