The roots of the equation $(z+\alpha \beta)^{3}=\alpha^{3},\alpha \neq \alpha \neq 0$, represent the vertices of an equilateral triangle of side
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The roots of the equation $(z+\alpha \beta)^{3}=\alpha^{3},\alpha \neq \alpha \neq 0$, represent the vertices of an equilateral triangle of side