The equation is .
Write an logarithmic form.
(Original equation)
(Logarithm definition: if and only if )
Therefore, the equation in logarithmic form is .
The logarithmic form of the equation is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
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. (Original equation) ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cc50866eb71a2a9e15b1e0c0bd077ba3.png\")
(Logarithm definition: ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=349523b86c1b445f05a8f5ae9ea036b4.png\")
if and only if ![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6464fe3d84d725bd37d4733459ebf62a.png\")
)![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=cc50866eb71a2a9e15b1e0c0bd077ba3.png\")
.![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
.