$\int\frac{1}{x\left(x+1\right)\left(x^2+1\right)}dx$

$\frac{3x^3-x^2+3x-1}{x+1}$

$3y+\frac{dy}{dx}x^3-6x^2y$

$\int_0^1\pi\left(\ln\left(y\right)^2\right)dx$

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

$\frac{x+3}{3}-\frac{4}{x+2}<\frac{x}{3}$

$93z^2m^2y-6z^2m^3y^3$