The expression is .
(Apply commutative property of multiplication: )
(Apply zero product property: )
The simplification is .
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a9898f13429dd404b933c01025d9fab9.png\")
(Apply commutative property of multiplication: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a9e4e1added4b105cbd9e363446c61bb.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=20a11176b25cf32776f7e7327bc1c505.png\")
(Apply zero product property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=676de3943f6e8aca04a74857bc5696eb.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=100ca5dcdd115847513b8f3606a7032d.png\")
(Apply zero product property: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=592f93501cb11820118877fb064b19e4.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
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.