$y=3x^2+5x+8$
$-\sqrt{3}sin\theta\:-3sin\theta\:\:tan\theta\:-tan\theta\:=-tan\theta\:$
$2x+1\:+\:2x-1$
$\lim_{x\to2}\left(\frac{\sqrt{4x+1}-3}{\sqrt{x}}\right)$
$2x+4+5x$
$\left(4ab^25x^4\right)^2$
$n2+8n+4$
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