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17. Calculaţi: a) 5√2-√3+7√5-4√3+√2-6√5; c) 9√2-4√7-√5-√7+8√5-4√2; b) 4√3-√5-√6 +8√3-4√6-7√5; d) √6-√7-6√5 +2√7+8√6-9√5.​

17 Calculaţi A 5237543265 C 9247578542 B 4356 834675 D 6765 278695 class=

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