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a) (2° +2¹+2²): 7²+7²; b) 618.365: (613)2 +410.710:289-250-018; c) 3100: [340.358+ (310.315)5:327 + (457: 456-14) 90.38].​

A 2 22 77 B 618365 6132 410710289250018 C 3100 340358 3103155327 457 45614 9038 class=