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(Rad 5-rad 2)^2+2rad2(rad5-rad2)........rad=radical!!

Răspuns :

(√5-√2)²+2√2(√5-√2)=
√5·√5-2√5·√2+√2·√2+ 2√2·√5-2√2·√2=
5-2√10+2+2√10-2·2=
5+2-4=3
Poftim.....................
Vezi imaginea GABEG