i have restrictions on and i want to unenable them but i dont remember the passcode, how do i retrieve the passcode ?

You can't. You will need to restore the iPad either using a backup created before you set the Restrictions passcode or to factory settings.

http://support.apple.com/kb/HT1414

Forum Tip: Since you're new here, you've probably not discovered the Search feature available on every Communities page, but next time, it might save you time (and everyone else from having to answer the same question multiple times) if you search a couple of ways for a topic, both in the relevant forums and in the Apple Knowledge Base before you post a question.

Regards.

How do I reset to factory setting??