Răspunsuri

2014-10-06T12:58:20+03:00
[tex] \sqrt{3} ( \sqrt{27} +4 \sqrt{3)} .Descompune \sqrt{27} .O sa-ti dea 3 \sqrt{3} => \sqrt{3} [/tex] .Dupa ai rad. 3*7 rad 3=21.