Корни квадратного уравнения

class NoSolutionsError(Exception):
    pass
 
 
class InfiniteSolutionsError(Exception):
    pass
 
 
def find_roots(a, b, c):
    if not all(map(lambda x: isinstance(x, int), (a, b, c))):
        raise TypeError
    if a == 0 and b == 0 and c == 0:
        raise InfiniteSolutionsError
    elif a == 0 and b == 0:
        raise NoSolutionsError
    elif a == 0:
        return (0 - c / b), (0 - c / b)
    elif b == 0 and c == 0:
        return 0, 0
    elif b == 0:
        if (c / a) < 0:
            raise NoSolutionsError
        elif (c / a) > 0:
            roots = sorted([((-c / a) ** 0.5), (-(-c / a) ** 0.5)])
            return roots[0], roots[1]
    elif c == 0:
        roots = sorted([0, (-b / a)])
        return roots[0], roots[1]
    else:
        d = (b ** 2) - (4 * a * c)
        if d < 0:
            raise NoSolutionsError
        elif d == 0:
            return (-b / (2 * a)), (-b / (2 * a))
        elif d > 0:
            roots = sorted([((-b + (d ** 0.5)) / (2 * a)), ((-b - (d ** 0.5)) / (2 * a))])
            return roots[0], roots[1]

import math
 
class NoSolutionsError(Exception):
    pass
 
class InfiniteSolutionsError(Exception):
    pass
 
def find_roots(a, b, c):
    if type(a) not in [int, float] or type(b) not in [int, float] or type(c) not in [int, float]:
        raise TypeError("Coefficients must be numbers.")
    
    if a == 0:
        if b == 0:
            if c == 0:
                raise InfiniteSolutionsError("Infinite solutions.")
            else:
                raise NoSolutionsError("No solutions.")
        else:
            return -c/b, -c/b
    else:
        D = b**2 - 4*a*c
        if D < 0:
            raise NoSolutionsError("No solutions.")
        elif D == 0:
            return -b/(2*a), -b/(2*a)
        else:
            x1 = (-b + math.sqrt(D)) / (2*a)
            x2 = (-b - math.sqrt(D)) / (2*a)
            return x1, x2