$\:456+-203+196+-401+275+841+-650+220$
$\int\frac{1}{\left(100+x^2\right)^2}dx$
$7x-5>2-5x$
$\int_1^2x\log\left(x\right)dx$
$\frac{dx}{dt}=-2$
$\frac{4}{3}+2\le3$
$5\cdot96$
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