" al expansion of "(1+x)^(n+1)," when "x=8" .Deduce that "9^(n+1)-8n-9" is divisible by "6

3^(2n+2)-8n-9 is divisible by

Show that 9^(n+1)-8n-9 is divisible by 64.

Write down the binomial expansion of (1+x)^(n+1), when x=8. deduce that 9^(n+1)-8n-9 is divisible 64 where n is a positive integer.

9^(n)-8^(n)-1 is divisible by 64 is

9^(n)-8^(n)-1 is divisible by 64 is

3^(2n+2)-8n-9 is divisible by 8.

4^(n) - 3n - 1 is divisible by 9