The expression is .
(Substitute x = 2, y = 5 and z = 7)
(Evaluate power: )
(Multiply:)
(Subtract: )
The value of the expression is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=937fe45407db73bec16524a61e565ab0.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d4daec1e13a4e49234e336cfcfa0967d.png\")
(Substitute x = 2, y = 5 and z = 7)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a0e1c41bd354b98d01628db44465ac4b.png\")
(Evaluate power: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c9b28b89cba19407f12090672b0cbdda.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=870fdb24f62349e631fc9ddd316a0d44.png\")
(Multiply:![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cf1f0e49750087f120c189bc4eab0b14.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0093d79526cd887494290389ed1207e8.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=79a393dd7a34163f9ff877f0ffe5d84c.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=05168a2453f6378adbed58bdc61ef9fe.png\")
.