Back and front cases separated ASUS Android 5.0 K013

The left hand side of my ASUS 7 Android's case has split open. If I want to use the tablet I have to squeeze the side together to get it to work.

How do I rejoin the side? Glue? Tape? or just throw it away?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0

crwdns2942205:01crwdne2942205:0:

So the tablet doesn't work when not held together?

Is there glue or tape already inside?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0