A question about Russian conjugation :)

Hi. I was wondering can you conjugate two times in one sentence. For an example Я слышу музыку и работаю в заводе or can you only conjugate one, for an example: Я слышу музыку и работать в заводе

Я слышу музыку и работаю на заводе is right.

Oh thanks ^_^ So for "in" what is the difference between на and в?

It's the use, you just don't say в заводе.
By the way, it's я слушаю музыку if you meant "I listen to music". What you wrote means "I hear the music and work at the factory". I felt the sentence was weird but couldn't understand what was wrong with it at first.

Oh I read that it was слышу?, lol thanks for giving me the right way to say it