$767.372+234.55$
$4x^2-200$
$4x^2-4xy^2+y^4$
$\frac{1}{\pi}\int_0^{\frac{\pi}{2}}\left(sin\:nx\right)dx$
$\int e^{-01p}dp$
$-100-500-\left(-400\right)+600$
$y^4\:-\:5y^2-50$
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