If x is a whole number, then x²(x² - 1) is always divisible by  Choose one.
A) multiple of 12 B) 24 C) 12 - x D) 12 E) none
Solution   Putting x = 12,we get 2²(2² - 1)	= 12.   So, x²(x² - 1) is always divisible by 12.   Answer 12
<result>D</result>
If x is a whole number, then x²(x² - 1) is always divisible by