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

$\int\left(\frac{26}{x\ln\left(5x\right)}\right)dx$

$\frac{d}{dx}\left(3y+2\right)^3=7x^3-3x$

$\frac{dy}{dx}\left(x^2\cdot\sin\left(x+y\right)=\left(2-y\right)^2\right)$

$\:\frac{z^2-9z}{z^2+3z-4}\cdot\:\frac{5z+3}{z^2+3z-4}$

$\left(x+2y+32\right)\left(x+2y-32\right)$

$x+2+2x+1+x+3+3+3x+2$