Упростите выражение:
а)5(х+2у)-3(2х+у)=
б)-2(х-у)-3(у-х)=
в)х(х-2)+2(х+1)=
г)-х(2х-3)+3(2-х)=
а)5(х+2у)-3(2х+у)=
б)-2(х-у)-3(у-х)=
в)х(х-2)+2(х+1)=
г)-х(2х-3)+3(2-х)=
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Answers & Comments
5х+10у-6х-3у= -х+7у
2.=-2х+2у-3у+3х=х-у
3. х^2-2х+2х+2=х^2+2
4. -2х^2+3х+6-3х=-2х^2+6