$\int arc\:ctg\:\left(\frac{m}{2}\right)x\:dx$

$\int\:\frac{2x^3-14x^2+24x+3}{x^2-7x+12}dx$

$\left(t^2+t\right)\left(t\right)$

$4\cdot\frac{\left(-5\right)}{\left(-2\right)}$

$\frac{dy}{dx}=xe^x+\frac{y}{x}$

$\frac{dy}{dx}-4y=2xy$

$5x\left(z^3-2\right)+3y\left(z^3-2\right)$