$17-\infty$
$\left(130\right)+513$
$\frac{2}{x+1}<1$
$\left(2z\cdot4z\cdot z\right)$
$30x^2-8x-8$
$x^2+10x-1\:para\:x=-2$
$\left(\frac{1}{3}x^4\right)\left(\frac{2}{3}x^3-\frac{1}{4}x^2+\frac{2}{3}x\right)$
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