Sir, in example 9, answer is 100 by using X+y. How?
We can also use x-y because n is even positive and x^n-y^n is divisible by x-y if n is positive integer even or odd.
Dear student,
Yes, I think there has been some mistake in the answer as it can be (x-y) i.e (64-36) which is the least positive value. You have analysed correctly. Keep it up.
Regards.
Yes, I think there has been some mistake in the answer as it can be (x-y) i.e (64-36) which is the least positive value. You have analysed correctly. Keep it up.
Regards.