Question 1078249
<pre>
If the original problem is not a fraction, like this:

{{{x^(-1)}}} or {{{7^(-2)}}}

Put in a 1 coefficient, then put it over 1, 
like this, so that it will be a fraction:

{{{1x^(-2)/1}}} or {{{1*7^(-1)/1}}}

Next, if the negative exponent is in the numerator,
move it to the denominator, and change the negative
exponent to positive, like this

{{{1/x^2}}} or {{{1/7^1}}}

If the exponent is 1, just erase it.

--------------

If the negative exponent is a factor in the denominator, 
like this:

{{{4/(5x^(-3))}}}

move it to the numerator and change the negative exponent to
positive, like this:

{{{(4x^3)/5}}}.

Edwin</pre>