Question

if nsquare-1 diviseble by 8 then find the value of 'n'?

Answer 1

n=can be 3

n²-1 =(3)²-1 =9-1 =8

8 is divisible by 8

n can be 7 (49-1) 48 is divided by 8

n can be 3, 7, 9....... etc

Answer 2

Answer:

n can be 3,5,7,9,11 ,13

an this series was +2

3+2=5+2=7

7+2=9

9+2=11

13+2=15