Question 561603
<pre>
n<sup>-6</sup>*n<sup>-9</sup>

First just add the negative exponents:

n<sup>-15</sup>

To make a negative exponent positive:

1.  Give it a 1 coefficient and a 1 denominator:

{{{(1*n^(-15))/1}}}

2. Move the negative exponent from numerator to denominator
and change the sign of the exponent to positive:

{{{1/(1*n^15)}}}

Erase the 1 in the denominator but not in the numerator:

{{{1/(n^15)}}}


Edwin</pre>