The expression is .
(Product of two different signs is negative)
(Apply distributive property: )
(Subtract: )
(Multiply: )
The solution is 1440.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b479303b6a8892cec4f8e1875508c9a5.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=320a878f11a7ef14f76e73f4e5a15936.png\")
(Product of two different signs is negative)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=52148154737ed4822bbe28ec05f085bf.png\")
(Apply distributive property: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=305fd78f8e77bb58cde41a0f8f91f22e.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5432fcd4761c806a3b3d97177d89dc63.png\")
(Subtract: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=120ae1b31fca2a43ced3bde28c6ac4fa.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b42c74c254c9d69cb92d3940e9e70431.png\")
(Multiply: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cd24f1d2886cdcd896ad740d7453bb4c.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")