The expression is .
Combine like terms using distributive property: .
(Subtract: )
The simplified expression is .
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7466e84b399715166164ca22e658bbad.png\")
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(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=07461ac8d596ce552e157544b6ab5f49.png\")
) ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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.