The expression is .
(Apply associative property of addition: )
(Product of two different signs is negative)
(Subtract: )
The simplified expression value is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=724179bcbecb293e1325eaf9a8c519f2.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0ac940ec69cdcbea7470db4d2cb12516.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d20735d92e7ceb81b269954bbbcaf24c.png\")
(Product of two different signs is negative)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c08784ea2d65b4f9f868bd5f611d5789.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=47aaf3cc547ba391f168925a5ba65a53.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=89702f4d51339779fd44b4711efff313.png\")
.