$3a^2-5a-2$
$\sqrt{x}+\sqrt{y}=\sqrt{c}$
$\lim_{x\to0}\:\left(\frac{sin\left(sin\left(x\right)\right)}{x}\right)$
$y+2=2-y$
$5.4789+0.3$
$\frac{d}{dx}\sqrt{\frac{x-5}{x^4+5}}$
$2xy+4-x+3xy$
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