\ \
The expression is
(Substitute n = 8)
(Multiply: )
(Subtract: ) \ \
The value of the expression is .
![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
\ \
\ \
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dc9a0ab0272fc282bd6ecf6a3c44275b.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=125c8bd4d353a5acefa6dc50c582a62b.png\")
(Substitute n = 8)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=23f0b92ce0b3357f0459cdd9ae80c62a.png\")
(Multiply: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4f995851fbb4f24656d39ad831b02079.png\")
)![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=015e9ee7d307d1c40728a5cbb60f04da.png\")
(Subtract: ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=25f1c87c8b1fa7e9380d194807eae7a4.png\")
)![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
\ \
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0ab698dc389fe61c2412d442c4d062e7.png\")
.