$144m^6-625$

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

$\frac{cos^4x-sen^4x}{cosx-senx}=cosx+senx$

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

$11\int sin\left(x\right)\cos\left(x\right)dx$

$\left(m^2+\:16m\:+\:64\right)\:cm^2$

$y=\frac{4\cos\left(2x\right)}{3\ln\left(x+2\right)}$