Answer :

Answer:

2mn

Step-by-step explanation:

Given

[tex]\sqrt{9m^2n^2}[/tex] + 2[tex]\sqrt{m^2n^2}[/tex] - 3mn

= 3mn + 2mn - 3mn

= 2mn
The power will delet the root and root of 9 is 3
2mn+3mn-3mn
=2mn

The answer will be
2mn

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