$x^2\le1$
$5x^2-80$
$-x^2+x-48=0$
$\int\left(-t^{\frac{3}{2}}\right)dt$
$\frac{\sqrt{x}+\sqrt{-2}}{\sqrt{x}-\sqrt{-2}}$
$x^2+y^2x=-4$
$\frac{d}{dx}\left(x-3\right)^2+y^2=1$
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