diff --git a/utils/quadroots.py b/utils/quadroots.py
index 460f2b1..4cb77ed 100644
--- a/utils/quadroots.py
+++ b/utils/quadroots.py
@@ -21,7 +21,7 @@ def quadroots(a, b, c):
         Roots of the equation.
     """
 
-    x1 = (-b + np.sqrt(b**2 - 4*a*c))/2*a
-    x2 = (-b - np.sqrt(b**2 - 4*a*c))/2*a
+    x1 = (-b + np.sqrt(b**2 - 4*a*c))/(2*a)
+    x2 = (-b - np.sqrt(b**2 - 4*a*c))/(2*a)
 
     return (x1, x2)