Question

m^2 -. 1 is divisible by 8, if m is​

Answer 1

I guess

m² -1 is divisible by 8 if m is an Odd natural number

eg: m= 3 m²-1=3²-1=9 (divisible by 8)

m=5 m²-1=5²-1=24 (divisible by 8)

....continues in the same way

Hoping that this helps you