$x^2-20x+12=0$
$3\sin\left(x\right)-\cos\left(2x\right)+2=0$
$3x^2-2x+3=0$
$\frac{3x^2+2x-1}{5x+3}$
$\:\int\frac{x}{\sqrt{2x-5}}dx$
$\left(-63\right)+\left(-21\right)+\left(85\right)-\left(95\right)$
$2x^2+5x-1=0$
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