The expression is .
Simplify the expression.
(Original expression) \ \
(Differences of squares: )
(Eliminate common factors)
.
The simplified expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f30a5cf08a737a2c5d59174611a5111e.png\")
. (Original expression) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=80329180732f43178459450db82f547c.png\")
(Differences of squares: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e2699a979fb3b6dd25062d7967f349a9.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ed70a2b5ade7a278bafeeeb83f46d19c.png\")
(Eliminate common factors)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0952c1d26e7176294b27028a925459b4.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=910adbb9dceda98498d0ce0f354acd68.png\")
.