$\int\left(\frac{x-\sin\left(x\right)}{x}\right)dx$

$\frac{x^3}{8}+27y^3$

$\left(-4\right)\cdot\left(-7\right)\cdot\left(-3\right)-\left(6\right)$

$\frac{d}{dx}x-y=xy^3+y^4$

$\frac{dy}{dx}\left(3y+x\right)=2x$

$\left(\frac{2}{3}x^2y^3\right)\left(-\frac{3}{5}a^2x^4y\right)$

$\frac{9n^4-124v^8}{3n^2-12v^2}$