$x^2-x<5$
$\left(u^2+7\right)\left(-1-x\right)$
$.04x\ge0.8$
$\left(\sqrt{x}+2\sqrt{x}\right)-\left(\sqrt{x+3\sqrt{x}}\right)$
$-5x-1<-6$
$m^4+2m^2+m$
$\int\sqrt{4-49x^2}dx$
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