diff --git a/apps/calculation/additional_outputs/second_degree_list_controller.cpp b/apps/calculation/additional_outputs/second_degree_list_controller.cpp
index 8e2b804e7..13866e430 100644
--- a/apps/calculation/additional_outputs/second_degree_list_controller.cpp
+++ b/apps/calculation/additional_outputs/second_degree_list_controller.cpp
@@ -169,10 +169,16 @@ void SecondDegreeListController::setExpression(Poincare::Expression e) {
     Expression x0Opposite = getOppositeIfExists(x0, &reductionContext);
     if (x0Opposite.isUninitialized()) {
       PoincareHelpers::Simplify(&x0, context, ExpressionNode::ReductionTarget::User);
+      if (x0.type() == ExpressionNode::Type::Addition || x0.type() == ExpressionNode::Type::Subtraction) {
+        x0 = Parenthesis::Builder(x0.clone());
+      }
       firstFactor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), x0);
     }
     else {
       PoincareHelpers::Simplify(&x0Opposite, context, ExpressionNode::ReductionTarget::User);
+      if (x0Opposite.type() == ExpressionNode::Type::Addition || x0Opposite.type() == ExpressionNode::Type::Subtraction) {
+        x0Opposite = Parenthesis::Builder(x0Opposite.clone());
+      }
       firstFactor = Addition::Builder(Symbol::Builder("x", strlen("x")), x0Opposite);
     }
     if (x0.type() == ExpressionNode::Type::Opposite) {
@@ -182,10 +188,16 @@ void SecondDegreeListController::setExpression(Poincare::Expression e) {
     Expression x1Opposite = getOppositeIfExists(x1, &reductionContext);
     if (x1Opposite.isUninitialized()) {
       PoincareHelpers::Simplify(&x1, context, ExpressionNode::ReductionTarget::User);
+      if (x1.type() == ExpressionNode::Type::Addition || x1.type() == ExpressionNode::Type::Subtraction) {
+        x1 = Parenthesis::Builder(x1.clone());
+      }
       secondFactor = Subtraction::Builder(Symbol::Builder("x", strlen("x")), x1);
     }
     else {
       PoincareHelpers::Simplify(&x1Opposite, context, ExpressionNode::ReductionTarget::User);
+      if (x1Opposite.type() == ExpressionNode::Type::Addition || x1Opposite.type() == ExpressionNode::Type::Subtraction) {
+        x1Opposite = Parenthesis::Builder(x1Opposite.clone());
+      }
       secondFactor = Addition::Builder(Symbol::Builder("x", strlen("x")), x1Opposite);
     }