$2x^2+8x-7=-2$
$48+49+50$
$35-24.1$
$x^2-7x+6<0$
$\frac{d}{dx}\arccot e^x$
$\frac{25}{9}x^2-81$
$\int\left(\left(2x+6\right)\left(x^2+6x+10\right)^3\right)dx$
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