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