$2x+5<3x-7$
$12x^2-192=0$
$\frac{d^2}{dx^2}\left(sin\left(\frac{1}{2}x\right)\right)$
$5-3+4-1+2$
$\left(x^3-x^2\right)\left(\left(x^3-x^2\right)\right)$
$\lim_{x\to0}\left(\left(\frac{3x}{5x-11}\right)\right)$
$0.8+3.45-1.9$
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