সূত্রের সহায়তায় নিচের সমীকরণগুলোর সমাধান কর :

  1. \(2x^2 + 9x + 9 = 0\)
  2. \(3 - 4x - 2x^2 = 0\)
  3. \(4x - 1 - x^2 = 0\)
  4. \(2x^2 - 5x - 1 = 0\)
  5. \(3x^2 + 7x + 1 = 0\)
  6. \(2 - 3x^2 + 9x = 0\)
  7. \(x^2 - 8x + 16 = 0\)
  8. \(2x^2 + 7x - 1 = 0\)
  9. \(7x - 2 - 3x^2 = 0\)