$y'\:+\:4y\:=\:3\:sen\:2x$

$\int_0^1\left(\frac{\ln\left(x\right)}{1+x^2}\right)^2dx$

$\frac{d^2}{dx^2}\left(\frac{4x}{2x^2+y^2}\right)$

$\frac{4}{\left(\sqrt{4+x^2}\right)}$

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

$\frac{dz}{dt}=\frac{t+6}{t+1}$

$\log_{10}\left(-8\right)$