The expression is .
The given matrices are
(Subtract corresponding entries)
(Simplify)
The solution is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0028714a8369368e6c597a4a4e135332.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1234ce281144680f990f3076597dfe47.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4fcf81d58a8c81328680b714f951e4b2.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d86295b19b0a2679bd3c8bbddfe3f18d.png\")
(Subtract corresponding entries)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5878aeb2209e06a59d8b2b5dd6691a0a.png\")
(Simplify)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5878aeb2209e06a59d8b2b5dd6691a0a.png\")
.