Question

what will value of n for n2 - 8 divisible by 8 ​

Answer 1

The values of n would be:

=> 3^2-1 = 8 which is divisible by 8. Then,

=> 5^2-1 = 24 which is divisible by 8.

Answer 2

n²-8=8

=>n²=8+8=16

Therefore,n=±4.

.....

Hence,the values of n belong to the multiples of 4 (including zero).

i.e,n ε 0,±4,±8,±12,±16,......,±4y

where y is an integer.

......

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