how do i delete an app from my itunes account

You can delete apps from your device(s) and your computer's iTunes library, but you can't permanently delete any item from your purchase history, all you can do is hide them via your computer's iTunes so that they don't show in the Purchased links for redownloading : http://support.apple.com/kb/HT4919

I cant even get it to hide. All it offers is a cloud symbol for a redownload. help?

You are hiding it via the Purchased section on your computer's iTunes ? The 'x' might not show when you hover your mouse pointer over an app's top left corner (there is a bug in iTunes), but clicking there should still hide the app