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- from math import *
- def equazione_secondo_grado(a,b,c):
- delta=b*b-4*a*c
- if delta<0:
- x1=((-b+(sqrt(delta)))/(2*a))
- x2=((-b-(sqrt(delta)))/(2*a))
- return(x1,x2)
- return None
- res = equazione_secondo_grado(2,1,3)
- if res != None:
- print res
- else:
- print "Delta negativo"
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