The given expression is .
The expression is not a polynomial,because has a variable under radical sign.
The expression is not a polynomial.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6575f6c793815e4cc455b1ca4520c119.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6575f6c793815e4cc455b1ca4520c119.png\")
is not a polynomial,because ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=73615e55df0ff431654ab46327ac99f8.png\")
has a variable under radical sign.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")