$-x^2+10x-9\ge0$
$x y ^ { 2 } = 9$
$\lim_{x\to0}\left(\frac{yx^2+x-1}{yx}\right)$
$x+2>\frac{7}{2}$
$\:\:+\:12x\:=\:0$
$\log\left(x+1\right)=2\cdot\log\left(x\right)$
$3\left(5\:+\:6h\right)$
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