સમીકરણ $\log_{7}(\log_{5}(\sqrt{x^2 + x + 5})) = 0$ નો ઉકેલ શોધો.

  • A
    $x = 2$
  • B
    $x = 3$
  • C
    $x = 4$
  • D
    $x = -2$

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