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Aducem la forma cea mai simpla radikal 12 -radikal6 supra radikal 30 - radikal 15

Răspuns :


radikal 12 -radikal6 supra radikal 30 - radikal 15 =

rad 6(radikal 2 -1) supra radikal 15(  radikal 2-1)=

radikal6  supra radikal 15 =
rad 2/rad 5
rad 10/ 5