The expression is .
The two integers have the different sign.
Product of two different signs is negative.
(Multiply: )
The product of is .
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ca122fc3f41d6699f51203fb769ec951.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ca466a0f8e3592e573240db7fd30eb15.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e0fc74171b5aedaf8353784a4252b4eb.png\")
.