The expression is .
Apply negative exponent formula is . Where and any whole number n.
The solution is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7f7614dd20e6857df25f8f6587e40adb.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e37ac89a918cf0a22c980312b07397a2.png\")
. Where ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=42a566b19f0d56198585965f5a36766c.png\")
and any whole number n.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a1726778c5ff265feb1a235559e48e21.png\")
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b16c55132591639a136a29b3df7499a8.png\")
.