$m^4+2m^2+m$
$\:\:\frac{5^3}{5^2}$
$\int\frac{4}{5-2x}dx$
$2-6k+7$
$4x\:+\:9\:+\:12x\:-\:3$
$x-x^2+x^3-x^4$
$\frac{4e}{3}\left(\frac{2\pi\:}{5}+\frac{4\sqrt{3}}{3}-\frac{2\pi\:}{3}-\frac{2\sqrt{2}}{3}+\frac{4\sqrt{3}}{3}-\frac{\sqrt{2}}{3}\right)$
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