Articles of Faith, pg. 48; “A knowledge of good and evil is essential to the advancement that God has made possible for His children to achieve; and this knowledge can be best gained by actual experience, with the contrasts of good and its opposite plainly discernible.” – James Talmage
1 Corinthians 1:18-20; “For the preaching of the cross is to them that perish foolishness; but unto us which are saved it is the power of God. 19 For it is written, I will destroy the wisdom of the wise, and will bring to nothing the understanding of the prudent. 20 Where is the wise? where is the scribe? where is the disputer of this world? hath not God made foolish the wisdom of this world?”
Again, they are teaching dualism.