The expression is .
(Apply commutative property of multiplication: )
(Multiply: )
The simplification is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=845eb8c5d4de29ce5b8bb64705521c57.png\")
(Apply commutative property of multiplication: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8f5c1afc762442f7032802c7337f7b50.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b793502adf210af3f693a3bcbbdc4be5.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bbad011f9437ae3ad26c33de6a7f2558.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=edcb6f8fdc07c892d006d20ba29d4a02.png\")
.