$-\frac{1}{2}+3-5+\frac{3}{2}$
$3w^2-5w+3=2$
$\left(x^3\:-\:6x\right)^2$
$-2mn^2\left\{-3mn\right\}-\left[n^2\right]+\left(m^2\right)+2mn-n^2$
$\frac{a}{a^7}^7$
$\left(x-1\right)\left(x^2-x+1\right)+1$
$\lim_{x\to0}\left(\csc\left(7\right)\right)$
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