The expression is .
(Apply Pythagorean identity: ) \ \
(Apply distributive property) \ \
(Simplify) \ \
(Multiply) \ \
The simplified expression value is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5dccaf9658a22e482bf47075efbbc612.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=463b01125ffc8af6d42ba26e18d35a6f.png\")
(Apply Pythagorean identity: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d22081696306aa166404142b1d2581b9.png\")
) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d5192f0adf5542aae5a1d9c4c9b92553.png\")
(Apply distributive property) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fa8bf975e75496232482b4d3dd049bfe.png\")
(Simplify) \ \
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1c201d5a71eb545a504d11b7d95a9e1c.png\")
(Multiply) \ \
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=2af6e83b0e9af64878f4e8cc8c73d3f5.png\")
.