$\lim_{x\to\infty}\left(\frac{\left(3-\sqrt{x+7}\right)}{\sqrt{x+2}-2}\right)$
$\int\frac{\sqrt{x^2-9}}{2x}dx$
$m^2-24mn+144n^2$
$4x\left(x-2\right)>-9$
$\frac{x^4+3x^3+0x^2+ax-b}{x^2+0x-10}$
$\frac{6x^3-x^2-x-1}{2x-1}$
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