The expression is .
Simplify the expression.
(Original expression)
(Formula: )
(Simplify)
.
The simplified expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cb42fe1fd5d180fdd765eef9ac569e70.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cb42fe1fd5d180fdd765eef9ac569e70.png\")
(Original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4fc270ca1ded09cd6ba2ae5bedd7acb3.png\")
(Formula: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b8ccc9151dba1d2132a0a801da180aec.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2e0b5cee9ce505363bfb887da053e866.png\")
(Simplify)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8f460aec41756d542c591322259f58ac.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ac7e9edb94340145e6a30df29e29de4e.png\")
.