negative number within a root

Question

I'm doing a code that can calculate the zeros of a polynomial of second degree but when there is a solution where the root is negative I throw error and I know that it can be solved with a "try" but I do not know exactly how

This is my code
import math as m
def cuadratica(a,b,c):

r1 = (-b+m.sqrt(b**2-(4*a*c)))/(2*a)
r2 = (-b-m.sqrt(b**2-(4*a*c)))/(2*a)
r3=-b/2*a

if b**2 > 4*a*c:
print("la primera solucion es "+str(r1)+"la segunda es"+str(r2))
if b**2 == 4*a*c:
print("la unica solucion es "+str(r3))
if not b**2 > 4*a*c and not b**2 > 4*a*c:
print("no hay solucion")
cuadratica(6,6,2)

Answer 1

You can try using cmath module

import cmath
print(cmath.sqrt(-4)) #2j

Answer 2

Hai mate