$-\frac{4}{5}x+2\le5-\frac{6}{5}x$
$0,05\:x\:0,005$
$\left(3z^2+2x\right)^3$
$8=2$
$75\cdot5$
$\left(x^3y-2x^2\right)^2$
$-27+-127+27$
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