ecuaciones
  • 1. x2+x-2=0
A) 1
B) 6
C) 45
D) 20
E) 3
  • 2. x2-49=0
A) 23
B) 34
C) 5
D) 56
E) 90
  • 3. x2-10x+25=0
A) 3
B) -8
C) 9
D) 12
E) 21
  • 4. x2+4x-32=0
A) 7
B) 18
C) 14
D) 23
E) 9
  • 5. 3x2+8x=0
A) 19
B) 0
C) 8
D) 2
E) 23
  • 6. x2+1.5x-2.5=0
A) 18
B) 1
C) 16
D) 19
E) 17
  • 7. x2-2x=48
A) 8
B) 3
C) 89
D) 27
E) 19
  • 8. -5xt2+75=70
A) 8
B) 13
C) 5
D) 10
E) 1
  • 9. -5xt2+75=37.5
A) 10
B) 2.739
C) 2.9
D) 7
E) 4
  • 10. -5xt2+75=5
A) 18
B) 3.742
C) 43
D) 8
E) 5.6
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