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Зaверши рaзложение нa множители.

\(a-b=-(b-a)\) .

1. \(x(a+b)+y(a+b)=(a+b)(\) [ ] \(+\) [ ] \()\) ;

2. \(a(2-b)-(2-b)=(2-b)(\) [ ] \(-1)\) ;

3. \(c(a-b)+d(b-a)=c(a-b)-d(a-b)=(a-b)(\) [ ] \()\) ;

4. \((c-3)-a(3-c)=1\cdot (c-3)+a(c-3)=(c-3)\cdot (\) [ ] \()\) ;

5. \(x (x-y)+(y-x)=x(x-y)-1\cdot (\) [ ] \()=(x-y)\cdot (\) [ ] \()\) ;

6. \(a(6-b)-(b-6)=\) [ ] \(=\) [ ].