Answer:
Sorry I don't remember the answer
Simple...
you have:

and

To solve for....

Multiply to remove the denominator-->>

n=12*3
n=36
Then-->>>

Do the same thing-->>

n=-12*3
n=-36
Thus, your answer.
Thirty six divided by four is equal to nine
The last term would be (3x)⁰(6)³=216