$\frac{dy}{dx}\left(x^2y^7+4x^4y^5+y^{12}\right)$

$x+3y-20x+6y-2x-20y$

$\frac{1}{3^2-9}$

$\int\left(\sin\left(t\right)^2\right)dt$

$\left(n^{2m}\right)^{-3}\cdot\left(n^2\right)m$

$\int\left(\frac{11x+5}{2x}\right)dx$

$\int x\left(\frac{\left(\sqrt{x}-y\right)^2}{2\pi}\right)dx$