$\frac{\left(ab\right)^3}{a^2b^4}$

$\int\left(e^{\left(2y-3\right)}\right)dx$

$\lim_{x\to-2}\left(2t^3+15\right)^{13}$

$4\:-\:6\:-\:5\:+\:7\:-\:3\:+\:2\:-\:6\:-\:5$

$2\left(x+3\right)+5\left(x-2\right)\le2x-1-2\left(x-3\right)$

$d^2-4ad+4a^2$

$\lim\:_{x\to\:\infty\:}\left(\frac{x^2-2x+3}{x-1}+ax+b\right)$