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13-05-2018
Mathematics

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(2√5+3√7)(2√5+3√7)

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Аноним Аноним

13-05-2018

(2√5+3√7)(2√5+3√7) = (2√5)(2√5) + (2√5)(3√7) + (3√7)(2√5) + (3√7)(3√7)

(2√5+3√7)(2√5+3√7) = 4(5) + 6√35 + 6√35 + 9(7)

(2√5+3√7)(2√5+3√7) = 20 + 12√35 +63

(2√5+3√7)(2√5+3√7) = 83 + 12√35

Answer: 83 + 12√35

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