SOLUTION: Multiply using the vertical method: PLEASE HELP ME WITH THIS:0/ (m^2-5mn+3n^2)(m^2+4mn-2n^2)

Question 83681: Multiply using the vertical method: PLEASE HELP ME WITH THIS:0/
(m^2-5mn+3n^2)(m^2+4mn-2n^2)
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
I guess this is the vertical method (using .... to keep things lined up):
:
........................................m^2 - 5mn + 3n^2
........................................m^2 + 4mn - 2n^2
.................----------------------------------
............................-2m^2n^2 + 10mn^3 - 6n^4
............4m^3n - 20m^2n^2 + 12mn^3
m^4 - 5m^3n + 3m^2n^2
--------------------------------------------
m^4 - m^3n - 19m^2n^2 + 22mn^3 - 6mn^4
:
Check this carefully a great chance for error here.

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