Given expression is .
Substitute in given expression.
(Product of two different signs is negative)
(Subtract: )
The value of the expression is 8.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3e43f2d1c0a78657d3818212efb3c949.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ee0fbc3d6fc27b1500831c00eec37f24.png\")
in given expression.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a8bf21502e345b9c1c0ed997b1cf87ac.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=852f328c913f47de76e7ead2a69b8d74.png\")
(Product of two different signs is negative)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8f71fbbfe8c58f5465acf04fa04cd7db.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b74fbb4c153447708a489359889eaca7.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")