$y=8x^2-3x+6$
$e=x^{3}+\frac{1}{x^{3}}\quad\text{si}\quad\frac{1}{x}+x=4$
$4+12+28$
$14-\left(+3\right).2+7.\left(-11\right)$
$y^2-5y+1$
$\frac{10^2}{10}$
$\left(8x^2+4x-7\right)\left(x^2\right)$
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