\
\
The expression is
\
(Substitute
)
\
(Product two same sign if positive
)
\
(Add:
)
\
(Add:
)
\
\ \
\
The value of the expression
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://c4anything.com/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=52223448c76d7a9aedbacd30b45dbf40.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6de9106bc094682e561bde6a16f507d7.png\")
(Substitute![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c6dfbda44c33603ae8ed79eae68955a0.png\")
)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=74a7a932da8c9f0ee6922f971d3c377c.png\")
(Product two same sign if positive)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5381fa41b7ba1f44c0e94e8cfaa5a022.png\")
(Add: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=74efbfb09bab1c739ae58e79888c441c.png\")
)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=51b0cbfd348314686514946e118ea7d2.png\")
(Add: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2a1e41614bb226de6990608ff5faf09a.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
\ \
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=72f4f5310f4cd88d19a3dfb57a279674.png\")