$5n+3\ge-12$
$z^2-\left(w^2-a\right)^2$
$2x^4-x^3-3+7\:\:$
$x+1>2$
$\frac{m^2-7^2}{m-7}$
$9ab12-9ab$
$\frac{2\cdot\cot\left(x\right)}{1+\cot^2\left(x\right)}=2\cdot\cos^2\left(x\right)$
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