Update solver.py

solver.py

@@ -115,10 +115,15 @@ def process_expression(expr_str):
         
         elif 'sqrt' in processed_expr:  # Handle square roots
             expr = parse_expr(processed_expr, transformations=(standard_transformations + (implicit_multiplication_application,)))
-            result = sp.sqrt(expr)
-            positive_root = result
-            negative_root = -result
-            return f"√{format_expression(expr)} = ±{format_expression(positive_root)}"
+            # Calculate the square root
+            positive_root = sp.sqrt(expr)
+            negative_root = -positive_root
+            
+            # Check if the expression is a perfect square
+            if expr.is_positive and positive_root.is_real:
+                return f"√{format_expression(expr)} = ±{format_expression(positive_root)}"
+            else:
+                return f"√{format_expression(expr)} = ±√{format_expression(expr)}"
 
         elif 'factorial' in processed_expr:  # Factorial case
             expr = parse_expr(processed_expr, transformations=(standard_transformations + (implicit_multiplication_application,)))