Question

How do I express this question's answer,

Answer 1

3/X

Answer 2

switch the x and the 3, so the exponent would become positive.

Answer 3

it's the recirocal ==> 3/x

Answer 4

if you're ever not sure of an answer, just pick a few numbers and check. use 2 for x and check to see if you get the same answer both ways