Question

find the difference

(-2m^2+5mn+5n^2) - (mn+5n^2)

please help !

Answer 1

develop and subtract
-2m^2+4mn (5n^2 cancel)
so
m(-2m+4n) is the answer

Answer 2

\[4mn-2m ^{2}\]

Answer 3

-2m^2 + 5mn + 5n^2 - (mn + 5n^2) -- distribute through the parenthesis
-2m^2 + 5mn + 5n^2 - mn - 5n^2 -- combine like terms
-2m^2 +4mn or the answer david put

Answer 4

well...P0sitr0n just factored the m out ....I am not sure if you have to factor or not.

Answer 5

yeh depends it he has to find roots