$\lim_{x\to\infty}\left(\frac{x}{x\:+\:1}\right)^x$
$x^2+11x+11=0$
$-3\:\left(47\right)\:$
$x-9<31$
$7m^2+2m^3-28n^2-8mn^2$
$\sqrt{49}-\sqrt[3]{1000}$
$12x^2-19x-5$
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