Gjej x, y, z, a, b, c (complex solution)
x=\frac{\sqrt[3]{c}}{2}\text{, }y=c\text{, }z=c\text{, }a=c\text{, }b=c\text{, }c\in \mathrm{C}
x=\frac{e^{\frac{2\pi i}{3}}\sqrt[3]{c}}{2}\text{, }y=c\text{, }z=c\text{, }a=c\text{, }b=c\text{, }c\in \mathrm{C}
x=\frac{e^{\frac{4\pi i}{3}}\sqrt[3]{c}}{2}\text{, }y=c\text{, }z=c\text{, }a=c\text{, }b=c\text{, }c\in \mathrm{C}
Gjej x, y, z, a, b, c
c=y
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