$\frac{x^3+8}{x^2-4}$
$\left|90\right|$
$\sin^2\left(x\right)\sin^2\left(x\right)$
$\frac{3x}{4}+\frac{x}{8}-\frac{x}{2}$
$\sqrt{64m^{14}}$
$706-50x\:+x^2$
$72,084-36,9$
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