Quadratic equation

a=int(input("Enter a: "))
b=int(input("Enter b: "))
c=int(input("Enter c: "))


d = b**2-4*a*c
x1 = (-b + (d**0.5))/2*a
x2 = (-b - (d**0.5))/2*a


#for complex
c1 = (-b/2*a)
c2 = ((-d)**0.5)/(2*a)


#complex----- output a+ib and a-ib formated by (c1+ic2),(c1-ic2)
if(d >= 0):
        print("Roots are : ",x1,"and",x2)
else:
        print("Roots are : (",c1,"+ i",c2,")    (",c1,"- i",c2,")")