The function is .
From given data f(x) = 0
(Add to each side)
(Simplify)
(Apply square root each side)
The value of the .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6f6fbbfb814a080658ae1c91fe13be61.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a57fbe9e5548e11a8131bc0804cffd1f.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e37e3d1a4c0de93ca7ef502c2eb491ec.png\")
(Add ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=da2a786966a220e26eb2ce2835c5e0ae.png\")
to each side)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e7f7972f22d9dbb7f3e7b4b28de41ba0.png\")
(Simplify)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fa07e183a2192c8498f911e10d98008e.png\")
(Apply square root each side)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cbaccac037030c716e8604b62cf68cfc.png\")
(Simplify)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
.