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МатематикаВопрос:
44. $$-4(\sqrt{2}-1)^{2}+2(3-\sqrt{2})(7+\sqrt{2})$$
Ответ:
44. Решим пример:
- $$-4(\sqrt{2}-1)^{2}+2(3-\sqrt{2})(7+\sqrt{2}) = -4(2-2\sqrt{2}+1) + 2(21 + 3\sqrt{2} - 7\sqrt{2} - 2) = -4(3-2\sqrt{2}) + 2(19 - 4\sqrt{2}) = -12 + 8\sqrt{2} + 38 - 8\sqrt{2} = 26$$
Ответ: 26
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