\
The expression is .
In the expression there no common terms and the expression is simplified.
The expression is simplified.
![\"\"](\"http://c4anything.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5208e3c4bcbc8e26bcb7b66da9e4a45c.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")