The expression is .
The two numbers have same signs and its product is positive.
(Use calculator)
The product is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=10e6688701fa092ae676f30a062f771a.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e7086446f27a3494ca16ed33c45e1da3.png\")
have same signs and its product is positive.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a95cc3ea18e934abfd13084d8a3df896.png\")
(Use calculator)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0d89410247d7fa4d0515f1ce09b39592.png\")
.