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