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4√3- 24 + 3√3+24= 7√3 / √14 =
usuwamy niewymierność z mianownika więc:
7 pierwiastek z 42 / 14
7√3 / √14= (7√3*√14):(√14*√14)=( 7* 6√2)/14= 42√2 / 14=3√2
odp.3√2