The expression is
Complete the squares.
Add and subtract from
The expression complete the square form is
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=565952be42da8fffd2372e5bb27ebc53.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2ac7f47dcc0563dbc3944bd870a3a9e3.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c4bfa8ed0c17a59e06f64be85cc20b52.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7e6abb9127b8e5beefa09221c2a54c59.png\")