Simplified and only positive exponents do not solve

    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.

omg what happend to your question? if you could edit this question i can

step-by-step explanation:

529 and 531

step-by-step explanation: