$\frac{du}{dv}=\frac{1+u^2}{1+v^2}$
$-77+-74$
$4x^2-20x-24y=-97$
$9x^2-12x+36$
$\int_{-\infty}^y\left(\frac{1}{25+y^2}\right)dy$
$-30+18-\left(-7\right)+1-5-\left(6\right)+\left(-7\right)$
$5a-\sqrt{3b}$
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