The expression is .
Apply distributive property: .
(Distribute 5)
(Multiply: )
(Product of two opposite signs is negative)
The solution of .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=322477ba1fcc893c3ecded5f036ed470.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e72dd5457022b72d7b731327901ee0ab.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8531c66c821a23cafda54df0dd03af02.png\")
(Distribute 5)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=595f4f9fba760af03b6a590528e8a033.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0c884c440271f4018fbde8b8eaa41be9.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d28287059a553c4cdd86a244c6734aed.png\")
(Product of two opposite signs is negative)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=84ed00b6ae7123f0ae3150aea2d8227e.png\")
.