$\left(4m-2n\right)^2$
$-2x^2+22x=60$
$4x+10<-2x-8$
$y'+xy=xy^{\left(-\frac{1}{2}\right)}$
$j^6-12j^3$
$\int\frac{r^{2}+12-r^{3}}{\sqrt{r}}dr$
$\sqrt[2]{-400}$
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