The expression is .
(Apply commutative property of multiplication: )
(Multiply: )
The simplified expression is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f5d12ced00a192c758a4ea788e896ae6.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2886fd5a5fb054e14576fc8bb23fc634.png\")
(Apply commutative property of multiplication: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=968bbdc8ee7e811ef2f846ec46f96936.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=117c9b93b4c32402356cd036b851d6a5.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=183f5ddbac72e140de0f9022a7175569.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4bad7ce83d5a5e95b7bcdae19b997570.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4bad7ce83d5a5e95b7bcdae19b997570.png\")
.