1) (2n-3n) (5m+n)-10(m+n)²= 2) (2√x-√y)²+4√xy=. Created by bahahas. matematika-ru

1) (2n-3n) (5m+n)-10(m+n)²= 2) (2√x-√y)²+4√xy=...

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1) (2n-3n) (5m+n)-10(m+n)²=
2) (2√x-√y)²+4√xy=

MizoriesKun 1)(2n-3n)(5m+n)-10(m+n)²=-n(5m+n)-10(m²+2mn+n²)=-5mn-n²-10m²-20mn-10n²=-11n²-25mn-10m²

2)4x-4√x√y+y+4√(xy)=4x-y

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