Question

Which expression is not equal to the expression shown?

Answer 1

`3^(-3)` ÷
`3^(4)`

Explanation:

When pulged into a calculator:

`3^(3)` ÷
`3^(-4)` = 2187

When your options are pulged in you get this:

`3^(-3)` ÷
`3^(4)` =
`(1)/(2187)`

`3^(3)` ·
`3^(4)` = 2187

`3^(7)` ÷
`3^0` = 2187

3 ·
`3^6` = 2187

because
`3^(-3)` ÷
`3^(4)` doesn't equal 2187 that is your answer.