$-x^2-7-30$
$3>2\left(2^{22}\right)$
$2\cos\left(x\right)=-\sqrt{2}$
$-n.-n.-n.-n.-n$
$2\cdot2\cdot2\cdot2\cdot3\cdot5\cdot6$
$718,6-159,01$
$\left(\frac{1}{2}x\frac{2}{3}x^{3a}y^1\right)^2$
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