$\int\frac{4e^{2x}}{e^x+1}dx$
$x^2+4x^2-2x$
$34<5=x$
$-\left(6-2-3\right)\:-\:\left(-3+2\right)$
$2x+3>-5$
$\left(11x^2-12y^2\right)\left(11x^2+12y^2\right)$
$2\sqrt[8]{y^5}$
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