Given matrices are .
The first matrix dimension is and second matrix dimension is .
Since the dimensions are not same, it is impossible to subtract these matrices.
Impossible.
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. ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c50cbd0369f20766cc532af224e6b571.png\")
and second matrix dimension is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=02cc88497928e9926ce789d08234a685.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")