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Answer:
The correct answer is A) 2m^5n^2 - m^4n^2 + 4mn
Step-by-step explanation:
To get this answer, divide each term by 3mn and list.
6m^6n^3/3mn = 2m^5n^2
-3m^5n^3/3mn = - m^4n^2
12m^2n^2/3mn = = 4mn
Now place them all together.
2m^5n^2 - m^4n^2 + 4mn