`(2(2x+1))/(x(x+1)) - 2/x `
`= (2(2x+1))/(x(x+1)) - 2/x * (x+1)/(x+1) `
`= (2(2x+1))/(x(x+1)) - (2(x+1))/(x(x+1))`
`=(2x)/(x(x+1))`
`= 2/(x+1)`
Sonstiger Berufsstatus, Punkte: 16.5K
`(2(2x+1))/(x(x+1)) - 2/x `
`= (2(2x+1))/(x(x+1)) - 2/x * (x+1)/(x+1) `
`= (2(2x+1))/(x(x+1)) - (2(x+1))/(x(x+1))`
`=(2x)/(x(x+1))`
`= 2/(x+1)`