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  1. a,b,c=map(float, input().split())
  2. if a==0:
  3.  if b!=0:
  4.   print(f"{-c/b:.2f}")
  5.  else:
  6.   if c==0:
  7.    print("Vo_so_nghiem")
  8.   else:
  9.    print("Vo_nghiem")
  10. else:
  11.  delta=b**2-4*a*c
  12.  if delta<0:
  13.   print("Vo_nghiem")
  14.  elif delta==0:
  15.   print(f"{-b/(2*a):.2f}")
  16.  else:
  17.   x1=(-b+delta**(1/2))/(2*a)
  18.   x2=(-b-delta**(1/2))/(2*a)
  19.   print(f"{x1:.2f} and {x2:.2f}")
Success #stdin #stdout 0.02s 9260KB
comments (?)
stdin 
0 2 -4
stdout 
2.00
https://ideone.com/dzYlCP
language:
Python 3 nbc (python 3.7.3)
created:
11 hours ago
visibility:
public

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