Answer:
m^2
----------- .
3 n^4
Step-by-step explanation:
The easiest approach here to obtain only positive exponents is to invert the entire quantity inside parentheses:
From the given expression we get the equivalent expression
1
-------------------- .
3 m^(-2) n^4
1
Given that we want only positive exponents, rewrite ------------ as m^2:
m^(-2)
m^2
----------- .
3 n^4
This is the final answer.
