diff --git a/if-example-math.py b/if-example-math.py
new file mode 100644
index 0000000..52d0421
--- /dev/null
+++ b/if-example-math.py
@@ -0,0 +1,12 @@
+import math
+a = float(input('a:'))
+b = float(input('b:'))
+c = float(input('c:'))
+
+delta = b * b - 4 * a * c
+if delta < 0:
+    print('Kök yok')
+else:
+    x1 = (-b + math.sqrt(delta)) / (2 * a)
+    x2 = (-b - math.sqrt(delta)) / (2 * a)
+    print('x1 = {}, x2 = {}'.format(x1, x2))
diff --git a/sample.py~ b/sample.py~
deleted file mode 100644
index e69de29..0000000