The expression is .
(Distributive property: a(b + c) = ab + bc)
(Substitution: )
The simplified expression is.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=563d58f1f9ed99503fabc7bd4883422f.png\")
.![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3a3d3af037ef7d1c4fbd47d00e1c66d2.png\")
(Distributive property: a(b + c) = ab + bc) ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9b45f0fccb73ffd9715d398957a861b7.png\")
(Substitution: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b87d9dcd3401aa5d0ebd6cc306598932.png\")
) ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f60e84adff42bc5b962d90399d297ea6.png\")
.