Polytheistic, EG: http://dictionary.reference.com/search?q=polytheistic or the belief in more than one god. Commonly polytheistic religions have gods for different purposes, the god of war, god of the harvest and fertility, that sort of thing.
Mormons believe in God the Father, Jesus Christ and in the Holy Ghost. These make up the “God head” a unit so in tune that they are one in might mind and purpose. The link includes the thirteen articles of faith, a list of beliefs written by Joseph Smith Jun.
Please if you have other questions, ask members of the church, not those who do not understand our beliefs because they are not members.
(You wouldn't go to Ford to find out about a Chevy would you?)
Yeah, we all know that used car salesmen are the perfect 100% trusted sources of information on the cars they sell! Go to them and never mind consumer mags weighing different autos, never mind bringing your own mechanic in to evaluate a car.