$\sqrt{\left(-22\right)^2+\left(51.2\right)^2}$
$\int\left(5+4x-x^2\right)dx$
$-11-\left(-1\right)$
$\int arctan\left(7z\right)dz$
$-6x^2+72x^2x$
$\left(8ab^2+7c^3\right)\left(8ab^2-7c^3\right)$
$-2x^3+12x^2-20x+8.5;\:x=0.5$
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