$\left(5w+z\right)^2$
$\frac{-1+b}{2}\le\:6$
$\sqrt{9}x^{-4}y^6$
$\:\:\:5\:\left(\:x\:+\:2y\:\right)\:-\:2x\:+\:6y\:$
$\left(x+3\right)\left(x+4\right)\ge\left(x+4\right)\left(x-4\right)$
$b7+\left(-62\right)+\left(-15\right)$
$\left(\frac{2}{5}y^2+\frac{1}{3}z\right)^3$
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