$2x\:-\:y\:+z\:=\:-3$
$2,5+0,025+0,03-32$
$\left(\frac{\cos\left(x\right)^2}{\sin\left(x\right)^2}+1\right)\left(1-\sin\left(x\right)^2\right)$
$\left(2a-ax\right)^2$
$5x-6\le x-2$
$3\left(p+1\right)+9\left(p-6\right)$
$\sqrt{a^3b}\sqrt[3]{2a^2b}$
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