One conflict is that the teachings of the Mormons differ from some verses in the Book of Mormon. So, the question is not completely relevant. The Mormons teaching about Jesus is that both Jesus and God the Father were once men on another planet who attained godhood by being good Mormons there. This is the doctrine of eternal progression. "As man is, so God once was; as God is, so man can become."
The Book of Mormon appears to be even more explicitly Trinitarian than the Bible. However, Joseph Smith seems to have changed his doctrines after the publishing of the Book of Mormon, but perhaps embraced this earlier on. Today, the Mormons do not believe anything close to the Trinity.
So, the Book of Mormon does have some things that appear to correspond to Trinitarian theology, yet the LDS church does not hold to the Trinity.
Book of Mormon References
And now, behold, my beloved brethren, this is the away; and there is
none other way nor name given under heaven whereby man can be saved in
the kingdom of God. And now, behold, this is the doctrine of Christ,
and the only and true doctrine of the Father, and of the Son, and of
the Holy Ghost, which is one God, without end. Amen. 2 Nephi 31:21
And now Abinadi said unto them: I would that ye should understand that
God himself shall come down among the children of men, and shall
redeem his people.And because he dwelleth in flesh he shall be called
the Son of God, and having subjected the flesh to the will of the
Father, being the Father and the Son—The Father, because he was
conceived by the power of God; and the Son, because of the flesh; thus
becoming the Father and Son—And they are one God, yea, the very
Eternal Father of heaven and of earth. And thus the flesh becoming
subject to the Spirit, or the Son to the Father, being one God,
suffereth temptation, and yieldeth not to the temptation, but
suffereth himself to be mocked, and scourged, and cast out, and
disowned by his people. Mosiah 15:1-5
Now, this restoration shall come to all, both old and young, both bond
and free, both male and female, both the wicked and the righteous; and
even there shall not so much as a hair of their heads be lost; but
every thing shall be restored to its perfect frame, as it is now, or
in the body, and shall be brought and be arraigned before the bar of
Christ the Son, and God the Father, and the Holy Spirit, which is one Eternal God, to be judged according to their works, whether they
be good or whether they be evil. Alma 11:44
And after this manner shall ye baptize in my name; for behold, verily
I say unto you, that the Father, and the Son, and the Holy Ghost are
one; and I am in the Father, and the Father in me, and the Father
and I are one. . . . And thus will the Father bear record of me, and
the Holy Ghost will bear record unto him of the Father and me; for
the Father, and I, and the Holy Ghost are one. 3 Nephi 11:27, 36
And he hath brought to pass the redemption of the world, whereby he
that is found guiltless before him at the judgment day hath it given
unto him to dwell in the presence of God in his kingdom, to sing
ceaseless praises with the choirs above, unto the Father, and unto the
Son, and unto the Holy Ghost, which are one God, in a state of
happiness which hath no end. Mormon 7:7
As well as those who should come after, who should believe in the
agifts and callings of God by the Holy Ghost, which bbeareth record of
the Father and of the Son; Which Father, Son, and Holy Ghost are
one God, infinite and eternal, without end. Amen. Doctrines and
Covenants 20:27-28