$2x^2+40x+150$
$\sqrt{5x}$
$\left(x+y\right)^2=\left(x-y\right)^2$
$x\frac{dv}{dx}+v=\frac{-1}{v-2}$
$\frac{x^2}{2}+2x$
$-a^2+10a+25$
$120^0+1098^0+40^0$
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