$32n^2-50$
$\frac{2^{11}}{2^{10}}$
$-6561-2187$
$\left(2x+5\right)^2-9\le\:0$
$\frac{3x}{1+3x}<1$
$\left(y+2z\right)^2$
$\cos4\sent\frac{dy}{dt}-\senu\cos t$
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