$\lim_{x\to-4}\left(\frac{5x^2+7x+2}{x+1}\right)$

$\left(a^3m^5-b^2n\right)\left(a^3m^5+b^2n\right)$

$\left(\frac{x}{9}+2\right)^5$

$\frac{dy}{dx}\left(\frac{12\sqrt{16x^{12}+24x^6+9}}{x^6}\right)$

$168+10$

$sin\beta\:csc\beta\:sec\beta\:$

$\lim_{x\to1}\left(log\left(x\right).\cot\left(1-x\right)\right)$