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Calculati :

(6-√18)²  + (6+√18)²


Răspuns :

(6-√18)²  + (6+√18)²
(36-2*6*r18+18)+(36+2*6*r18+18)=
36-12r18+18+36+12r18+18=
36+36+18+18-12r18+12r18=
=108