$\log\left(x\right)+log\left(3z\right)=9log\left(y\right)$

$\left(x+2\right)\left(x-2\right)\left(x^2+4\right)+2$

$\frac{d}{dx}\left(sinx=e^{-ycosx}\right)$

$\left(2f^3k^2-3x^4\right)\left(3x^4+2f^3k^2\right)$

$\frac{d}{dx}x^2-xy-y^2=3$

$\frac{p^2-256}{p-2}$

$\int\frac{x+4}{\left(x^2+12x+36\right)}dx$