The given expression is .
Factor using nearest greatest perfect square factor.
(79 nearer to prefect square root 81)
(Write )
(Cancel square and root)
The simplified expression is 9.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7e55e7c24ed73323c74d77292dec86b2.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a996ecf2893f2e03078f38c2e0870796.png\")
(79 nearer to prefect square root 81) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=afcd0590b5c6e3d0fe5ca87336977996.png\")
(Write ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=37162d46963d00e7df0e72b8f9bc3692.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7ed3dda5e9c28e6a22ef08a0b2bc7e54.png\")
(Cancel square and root)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")