$-2\left(-8+10i\right)-\left(\frac{3}{4}\sqrt[3]{-512}-i\right)+3\left(3\frac{2}{5}-8i+\frac{8}{5}\right)$

$\int\frac{x^2}{\sqrt{8-\left(x+2\right)^2}}dx$

$m^9-mn^8$

$x^2+8x-84$

$1-\left(-3\right)+\left(6-5+8\right)+\left(-3\right)+5$

$\lim_{x\to1}\left(\frac{1-x}{\sqrt{12-3x}-3}\right)$

$sen^2\left(x\right)-sen2x=0$