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Ecuaciones cuadráticas por completación de cuadrados
Contributed by: Naranjo G.
  • 1. 6x2 +11 x -10 = 0
A) -2/3, 5/2
B) -2/3, -5/3
C) 2/3, -5/2
D) 2/3, 5/3
  • 2. x2 + 8x + 12 = 0
A) -2, -6
B) -2 , +6
C) +2, +6
D) 2, -6
  • 3. 12x2 + x - 6 = 0
A) 2/3, -3/4
B) 2/3, 3/4
C) -2/3, 3/4
D) -2/3, -3/4
  • 4. x2+ 5x +6 = 0
A) 2, -3
B) 2, 3
C) -2, 3
D) -2, -3
  • 5. x2 - 3x -10 = 0
A) -5, +2
B) -5, -2
C) +5, +2
D) 5, -2
  • 6. x2 + 4x -21 = 0
A) 3, -7
B) -3, -7
C) +3, +7
D) -3, 7
  • 7. x2 - 10x + 24 = 0
A) -4, -6
B) +4, -6
C) 4, 6
D) -4, +6
  • 8. 6x2 + 19x + 10 = 0
A) -5/2, -2/3
B) 5/2, 2/3
C) 2/5, 3/2
D) -2/5, -3/2
  • 9. 12x2 -7x -10 = 0
A) -5/4, +2/3
B) 5/4, -2/3
C) -4/5, +2/3
D) -5/4, +2/3
  • 10. 15x2 + 8x -12 = 0
A) 2/3, -6/5
B) -2/3, -6/5
C) -2/3, 6/5
D) 2/3, 6/5
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