The expression is .
Apply distributive property: .
(Multiply: )
(Product of two same signs is positive)
The simplified expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e72dd5457022b72d7b731327901ee0ab.png\")
.![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=eda9e568369aa33b2d8e52266a31ef03.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=72b58727d5570bccf9f1143341991867.png\")
(Multiply: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d7c8d14f076b1eb68e7ec2ef12c2c49b.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a6a6698e42dda83566a950ef1922a7d2.png\")
(Multiply: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b63c2953749141fec8246144e5122080.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=213a0be6175d711728388995e40fd7d6.png\")
(Product of two same signs is positive)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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.