$\frac{x\:3\:-3\:x\:2\:+1\:1}{x-1}$
$y+4+x+8$
$\left(3m^{5\:}+7\right)^3$
$-4y<12$
$n^2-2n-15$
$\int\:\:\left(3cos2x-2sen3x\right)dx$
$-3x^{2}+2x,x=-1$
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