\
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=db3e409874dc5c450701bfe144728f4c.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dfb040d007b60323f5eb9d49402b0051.png\")
(Distributive property: a(b + c) = ab + bc) ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=51fc6c1b96e1976170bfcd7eeeea9dc4.png\")
(Substitution: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=12856d661d16564aca61d8ef4a47c7f1.png\")
) ![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=75ca1ed162834bb5ad8d5606f7342c96.png\")
.