$x^2-2x-11$
$\lim_{x\to2}\left(\frac{4x+3x^3-10x^2}{x^2-2x}\right)$
$-\infty-100$
$\left(2m+3n^2+4\right)^2$
$n\:+\:14n$
$5+x<18$
$\left(10\right)+\frac{50}{10}$
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