해봐 Vs 해 봐
These words are kind of confusing words in Korea.
Actually many of Koreans using these words without distinction but they have different meanings.
해봐 : please do! when someone starts fight, you can say like this 어디 한 번 해봐!
해 봐: When someone hesitates something to do, you can say him/her to try it. 한 번 해 봐! (just give it a try!)
So when you use Verb + 보다, use a space between them
해 봐, 먹어 봐...