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