This is a list of some things that are taught in the LDS Church that are not found in the Bible. Mormonism or The Church of Jesus Christ of Latter-Day Saints, have every right to be LDS/Mormon by their choice.
I want you to know that if you chose to be a Mormon, that you are choosing a religion that is not Christian. I once was a Mormon – Here are some of their teachings. Beside not believing in the Trinity - they believe that there are three (3) separate gods in their godhead not one God as the Bible states in three persons.
If this is what your after – here are some other things you will be taught.
1. God is an exalted man of Flesh and Bone and worked his way up to godhood.
2. He and his wives populated earth with their offspring.
3. His offspring worship him because they are his spirit children.
4. Man, and only man, can also become a god and attain the same as the gods did before him.
5. There are as many gods in the heaven as stars in the sky.
6. Women, who become the wives of gods – are most often pregnant forever, populating their husbands' planet.
7. Temples are for doing “works” such as Baptizing for the Dead – Sealing for eternity husbands and wives together in marriage and sealing families together to have their homes in heaven. Continually speaking with dead spirits, whom they believe are past friend and relatives, who want this ‘work’ done for them by proxy (stand-ins) at the temple. Secret garments they wear are given to each that protects them from their adversaries.
8. Joseph Smith, (not Jesus) will call the men of the church out of their graves by the secret names they are given in the Temple.
9. The Men of the church will then (if they want to) call each wife from the grave by their Temple given secret name, they may have more than one – (they marry by proxy also – plural wives are now attained by marrying spiritually in the future for the afterlife) - Living wives fight over who is going to be First wife called – she is the head wife and given more prestige.
10. Joseph Smith will judge his Mormons first – even before Jesus judges at the end times.
As you can see – I could go on and on but just these facts should make you think a little. In fact – I hope you think a lot. Your eternal soul depends on it. You can be a Mormon – But know it is not Christianity or Biblical. 
Are you guilty? 
I love blessing others, as God has blessed me.
