If x is a whole number, then x2(x2 - 1) is always divisible by	Choose the correct choice from the following options
A) 12  B) 24  C) 12-x  D) multiple of 12  E) NOne
Sol.   Putting x = 2, we get 22 (22 - 1) = 12.   So, x2(x2 - 1) is always divisible by 12.   12nswer 12
<result>A</result>
If x is a whole number, then x2(x2 - 1) is always divisible by