Question

Which expression is not equal to the expression shown?

Answer 1

Answer:

$3^{-3}$ ÷ $3^{4}$

Step-by-step explanation:

When pulged into a calculator:

$3^{3}$  ÷ $3^{-4}$ = 2187

When your options are pulged in you get this:

$3^{-3}$ ÷  $3^{4}$ = $\frac{1}{2187}$

$3^{3}$ · $3^{4}$ = 2187

$3^{7}$ ÷ $3^0$ = 2187

3 · $3^6$ = 2187

because $3^{-3}$ ÷  $3^{4}$ doesn't equal 2187 that is your answer.