Question

PLEASE HELPP!!! DUE IN A MINUTE! Prove that the value of each expression is divisible by the given number. 8^7-8^6 is divisible by 7.

Answer 1

`8^7-8^6=8 \cdot 8^6-8^6=7 \cdot 8^6`

Since
`8^6` is an integer,
`8^7-8^6` is divisible by
`7`.