Question

if n is an odd integer then n^2 -1 is divisible by which number

Answer 1

hey buddy here is ur ans

if an odd number is squared it gives an odd number
and when one is subtracted from it we get an even number so it is divisible by 2

for eg
let n be 3 which is odd
now n power 2-1=3 power 2-1=9-1=8 which is even, divisible by 2
hope it helps

Answer 2

Divisible by 2.
Example:. if n= 3
n^2-1=9-1
==>. 8
that's why divisible by 2