$\frac{x^2-2}{x-1}$

$5\sqrt{63}-7\sqrt{28}-9\sqrt{36}$

$\int\frac{ln^3x}{x\sqrt{ln^2z-4}}dx$

$3+4\left\{-8+2\left[4+3\left(4-7\right)+2\right]-4\right\}-10$

$\lim_{x\to\infty}\left(4-x^2\right)$

$9\left(4g+3\right)$

$f\left(w\right)=\left(w^3+3w-7\right)\left(2w^{3-4}\right)$