The expression is .
(The product of two integers with different signs is negative)
(Multiply: )
The product is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8e91dfc45d54c253c818a728312e5f14.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=127bc64a2a48ffeba9e9d787a7a0e58f.png\")
(The product of two integers with different signs is negative)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2e627b62ee21a6c8966ba85b958ba358.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4edf4c05640dc735752293cf34d9af26.png\")
) ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=529662cd4edf740e351f44d6e44437e9.png\")
.