Réitigh do x. (complex solution)
\left\{\begin{matrix}\\x=\frac{\sqrt{7}-1}{3}\approx 0.54858377\text{, }&\text{unconditionally}\\x=\frac{-\sqrt{7}-1}{3}\approx -1.215250437\text{, }&-Im(\ln(\frac{-\sqrt{7}-1}{3}))+Im(\ln(-\sqrt{7}-2))=0\end{matrix}\right.
Réitigh do x.
x=\frac{\sqrt{7}-1}{3}\approx 0.54858377
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