Ребят,помогите:с
1.Дроби :
3:х+3 + 3:х^2-3х + 2х:9-х2
2. х:х-1 + х:х+1
1.Дроби :
3:х+3 + 3:х^2-3х + 2х:9-х2
2. х:х-1 + х:х+1
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Answers & Comments
х/х-1 + х/х+1=х•(х+1)+х•(х-1)/(х-1)(х+1)=х2+х+х2-х/(х-1)(х+1)=2х2/х2-1