$x^2+14x+5=0$
$\frac{d}{dx}x^2e^{-x^2}$
$\sqrt{x+3}=3$
$a^2+7a+13=0$
$x^2-6x+9=25$
$-3\:x^{\left(2\right)}>2\:x+1$
$x^2+3x=18$
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