Question

How do you simplify `4yx^-1` and write it using only positive exponents?

Answer 1

`(4y)/x`

Explanation:

Anything raised to a negative power just means that that something is the denominator of a fraction, so: `x^-2= 1/x^2`

Assuming that the only thing being raised to `-1` in your question is `x`, we then have:
`4y*1/x` or `(4y)/x`