$-49a^{10}^n-\frac{h^{12x}}{81}$

$4x^2-16x+15$

$24x^2y\:+\:8xy$

$\lim_{x\to\frac{3\pi}{2}}\left(\frac{x-\frac{3\pi}{2}}{\cot\left(\frac{x}{3}\right)}\right)$

$\left[\left(3x^2\:y^2\:\right)\:^{-3}\left(9x^5\:y^{-1}\:\right)\:^2\right]\:^{-2}$

$\cos^2x\csc^2x$

$y^2-6y>-10$