Column A: $(x-1)(x)(x+1) = x(x^2-1) = x^3 - x$

Column B: $x \cdot x \cdot x = x^3$

Difference: B $-$ A $= x^3 - (x^3 - x) = x$.

• If $x > 0$: Column B is greater
• If $x = 0$: both equal 0 (equal)
• If $x < 0$: Column A is greater

Since no restriction is placed on $x$, the relationship cannot be determined from the information given.