$\lim_{x\to2}\left(\frac{x^2-32}{x-2}\right)$

$\int\left(\frac{x^2-x+3}{x^3-1}\right)dx$

$162x^5-32xa^4$

$\frac{\cos\left(a\right)\cdot tan\left(a\right)+sen\left(a\right)}{tan\left(a\right)}=2cos\left(a\right)$

$\frac{4x^2-5x-7}{2x^2+2}$

$\frac{dy}{dx}=\frac{y-2}{y+2}$

$-\left(-19\right)+\left(-48\right)-18$