The expression is .
(Product of two different signs is negative)
(Apply distributive property: )
(Subtract: )
(Multiply: )
The solution is 180.
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=19a7511067677a722225977aab3e06bc.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=288c5ca7450c83aeb5fd298433ca45f9.png\")
(Product of two different signs is negative)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=05700cfaf67ee438a5f7844033691786.png\")
(Apply distributive property: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=305fd78f8e77bb58cde41a0f8f91f22e.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=73d66503e91ed4d5fe81459c9496b79b.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1e566318510807f71951120ada1cea71.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2197e6ad3c7d3eb547aa0f4bfdc7c429.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3e115bcffe25cb28b0da068bc2c513fa.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")