Rešitev za x (complex solution)
x=\frac{\left(-1+\sqrt{3}i\right)^{-\frac{4}{3}}\left(8\left(-\left(-1+\sqrt{3}i\right)^{\frac{4}{3}}+\sqrt[3]{2}\right)+2^{\frac{2}{3}}\left(-1+\sqrt{3}i\right)^{\frac{8}{3}}\right)}{4}\approx -3,879385242-2,220446049 \cdot 10^{-16}i
x=\frac{2^{\frac{2}{3}}\left(-1+\sqrt{3}i\right)^{-\frac{1}{3}}\left(\sqrt[3]{-1+\sqrt{3}i}-\sqrt[3]{2}\right)^{2}}{2}\approx -0,467911114-2,775557562 \cdot 10^{-17}i
x=\frac{\sqrt[3]{2}\left(1+\sqrt{3}i\right)^{-\frac{2}{3}}\left(\left(\left(1+\sqrt{3}i\right)^{\frac{2}{3}}+2^{\frac{2}{3}}\right)^{2}-4\times \left(2\left(1+\sqrt{3}i\right)\right)^{\frac{2}{3}}\right)}{2}\approx -0,467911114+4,996003611 \cdot 10^{-16}i
Rešitev za x
x=-4\left(\cos(\frac{\pi }{18})\right)^{2}\approx -3,879385242
x=-4\left(\sin(\frac{\pi }{9})\right)^{2}\approx -0,467911114
x=2\left(\sin(\frac{\pi }{18})-1\right)\approx -1,652703645
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