$\left(a+2+c\right)^2$
$2x-3\ge x+2$
$\frac{7}{5}-\frac{2}{3}-\frac{7}{30}+\frac{1}{2}$
$\frac{2x^2+5}{6}\cdot\frac{8}{4x+2}$
$\left(\frac{1}{cos\theta\:}\:+\:tan\theta\:\right)=\frac{cos\:\theta\:}{1-sin\:\theta\:}$
$x^2+6<7x$
$6x+3y-5x$
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