[Python] Why does my TI-84 Plus CE calculator say there's an error on line 13 when it works...

I have a simple program to get me the answer of a quadratic formula.

import math

def solve_quadratic(a, b, c):
a = float(a)
b = float(b)
c = float(c)

d = b**2 - 4*a*c
if d < 0:
print("No real roots")
elif d == 0:
x = -b / (2*a)
print(f"x = {x}") # line 13
else:
x1 = (-b + math.sqrt(d)) / (2*a)
x2 = (-b - math.sqrt(d)) / (2*a)
print(f"x = {x1}, {x2}")

while True:
solve_quadratic(input("a = ? "), input("b = ? "), input("c = ? "))


On VS Code, it works completely fine, but for my calculator, it says there's an error on line 13.

>>> SyntaxError: invalid syntax


How can I fix this?

Continue reading...