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  1. a = int(input())
  2. b = int(input())
  3. c = int(input())
  4. if(b**2-4*a*c)>0:
  5. print((-b-(b**2-4*a*c)**(0.5))/(2*a),(-b+(b**2-4*a*c)**(0.5))/(2*a))
  6. elif(b**2-4*a*c)<0:
  7. print("null")
  8. elif(b**2-4*a*c)==0:
  9. print((-b-(b**2-4*a*c)**(0.5))/(2*a))
Success #stdin #stdout 0.02s 7400KB
stdin
1
4
4
stdout
-2.0