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Q: If x is a whole number, then x²(x² - 1) is always divisible by ?

  • 1
    4
  • 2
    8
  • 3
    12
  • 4
    None
  • Show Answer
  • Workspace

Answer : 3. "12"
Explanation :

Answer: C) 12 Explanation: we can do this by trial and error method. Putting x = 2,we get 2²(2² - 1) = 12.checking with other integers, the above equation always gives a value which is a multiple of 12,So, x²(x² - 1) is always divisible by 12.

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