Question

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

Answer 1

`4/x`

Explanation:

Recall that: `x^-m = 1/x^m`

Note that: `4x^-1 = 4 xx x^-1 larr " "` only x has the negative index!

`4x^-1 = 4 xx x^-1`

=`4/x`