\
The equation
is
.
\
Consider
.
\
Extract the square roots.
\
\
.
\
\
The
value of
.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0f2dd08a3efcacc48c7a848fe785abbc.png\")
..![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6249980b8b4483965a9a9db67a7495ac.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5bfda55a517e8564d8177c470eb2d6e3.png\")
.![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5bfda55a517e8564d8177c470eb2d6e3.png\")
.