$-27+-127+27$
$36x^4-72x^2+81$
$\left(0.4\sin\left(2\right)\right)$
$b^{-\frac{1}{2}}$
$2m\:=\:6$
$\left[\left(-5\right)\cdot\:\left(-4\right)\right]-\left[\left(-5\right)\cdot\:\left(-14\right)\right]$
$4<x\:+5$
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