i cant beat the three cave trolls. as soon as i get in the thing they instantly kill one pet and then its a downhill battle. how do i kill it. they are like level 32 and my part is a level 33,34, and 35

Well for one, each of your two party pets has a second proficiency point you can add. That will help. It will also help to get gear more fitted to your pets' elements. Light pets, for example, attack using magic and therefore need gear that deal magical damage and have high intelligence. Water pets attack physically and therefore need gear that deal physical damage and have high strength.