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Efectuati,dupa ce ati scos factorii de sub radical:
C)√243-√363-√507+√432;
d)√216+√726+7√6-√486;


Răspuns :

C ) 9√3-11√3-13√3+12√3 = -3√3
D) 6√6+ 11√6+ 7√6-9√6=15√6