Question

Write (27a^-9)^2/3 in simplest form

Answer 1

2 to the second power times a to the negative four power 
-------------
four times a to the negative four power

2(2)*a(-4)
-----------
4a(-4)

Or if you can't use negatives

4
----
a(4)

Four overtop a to the fourth power 
<span />