Let $\alpha, \alpha^2$ be the roots of $x^2 + x + 1 = 0$. Then the equation whose roots are $\alpha^{31}, \alpha^{62}$ is:

  • A
    $x^2 - x + 1 = 0$
  • B
    $x^2 + x - 1 = 0$
  • C
    $x^2 + x + 1 = 0$
  • D
    $x^{60} + x^{30} + 1 = 0$

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