$2x<-8$
$-5+8z+24-17y$
$4r^2-12r+7$
$\lim_{x\to\infty}\left(1+\frac{3x}{x^2+1}\right)$
$\frac{3x}{4}-2\ge10$
$722+135$
$\left(x-2\right)\cdot\left(4x-7\right)$
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