Question

Shown (n + 1) (n-1)
is divisible
by 3 for any positive integer​

Answer 1

Answer:

let's take n=4

so,

(4+1)(4-1)=5*3=15

hence,proved(n+1)(n-1)is divisible by 3 for any positive integer....

Hope it helps you

Step-by-step explanation:

Answer 2

Answer:

let's take any value of n which is more than three and should be positive let's take 4. ( 4+1) (4-1)= 15 and let's take 5. (5+1)(5-1)= 24 which are divisible by 3 for any positive integer