1) 1ab;
2)-1,2ab*0,5c;
3)-0,28cd;
4)-1cd
5)0,8xy
6)-1,8ab
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Answers & Comments
1) 1ab;
2)-1,2ab*0,5c;
3)-0,28cd;
4)-1cd
5)0,8xy
6)-1,8ab