$\left(8m^3+5n^3\right)^3$

$\frac{x^5-x^4+x^2-2}{x^2+6}$

$\lim_{x\to4}\left(\log_{x}16\right)$

$\int\frac{\left(t+1\right)^2}{3t^2-2t+5\left(t^2+1\right)}dt$

$\sqrt{2x-5}=7$

$b^2+12bc+36c^2$

$\frac{1+\cos\:\left(\theta\:\right)}{\cos\:\left(\theta\:\right)}=\frac{\left(\tan\:\left(\theta\:\right)\right)^2}{\sec\:\left(\theta\:\right)-1}$