\
The expression is
.
\
(Product of two same signs is positive)
\
(Multiply:
)
\
The product is
36
.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8edc44c7270302616ac8b20a64e14119.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=296d1568ae12ae06daa01d1e4167d1e0.png\")
(Product of two same signs is positive) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a749ad615d7bcd9d08e966f68d73584d.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=472f172cd97fe4f453d7ecb0bac7fe24.png\")
) ![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")