$m^2+n^2+\frac{1m^2}{2}+\frac{1n^2}{4}$

$6\left(x-3\right)=3\left(3x-5\right)$

$\lim_{x\to0}\left(\frac{sen^2x}{x^2}-\ln\left(x^2+2\right)\right)$

$\lim_{x\to\infty}\left(\frac{x+3}{x^2+3x+2}\right)$

$-93+2\left|-22\right|$

$\lim_{x\to\infty}\left(\frac{\frac{x}{x+1}-\frac{4}{5}}{x-4}\right)$

$x^3+512$