Yes you can. You just need to fill out the separate forms and submit  them.


Here are the Facebook application steps:
 
Application:
1. Follow and like our Facebook page
2. Fill and submit this form
3. Register your posts/reposts within five hours after creation with this form


and the Twitter Application steps:

1. Follow Cointed on Twitter
2. Register with this form
3. Register your tweets/retweets within one hour after tweeting/retweeting with this form.