The expression is .
(Replace x with 4 in original expression)
(Multiply: )
(Subtract: )
The value of the expression is 4.
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=9b4a9a5f3f9880297f9c8c92ea7f8b47.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=04b3cb5e89ed64e489fd8a0ee04d6a1f.png\")
(Replace x with 4 in original expression)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=42618e6890eb2aaae314de086c7aad0f.png\")
(Multiply: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=0ce7b23da2c4fdb38a333b0142acea40.png\")
)![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6c61d76715efa8eb317723cd8012a9b3.png\")
(Subtract: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=56af1378c9a5d643e156965d1da82731.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")