SOLUTION: can i get help it started out easy now i have confused myself? add (2m-n)^2 =4mn^2

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Question 75608: can i get help it started out easy now i have confused myself?
add
(2m-n)^2
=4mn^2
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(2m-n)^2
2m-n is a binomial and you are squaring it.
(2m-n)(2m-n)
=4m^2-2mn-2mn+n^2
=4m^2-4mn+n^2
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Cheers,
Stan H.