6x²÷3x=? The book says 6x & # 178; △ 3x = 2x, I don't know why, ask the great God to answer

6x²÷3x=? The book says 6x & # 178; △ 3x = 2x, I don't know why, ask the great God to answer

6x²÷3x=(6÷3)(x*x÷x)=2x