$3^{10}$
$\left\{5a-2b+3c\right\}+\left\{-7a+9b-2c\right\}$
$90\left(100\right)$
$\left(\frac{1}{n-1}\right)^2$
$x+4\left(x-9\right)>x-4\left(x+5\right)+6$
$-624+347$
$1x^2-0,6x-0,2$
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