Предмет: Математика, автор: Эля145

Помогиите...Найдите наименьшее значение 5х+3у для натуральных чисел х и у,удовлетворяющих уравнению х^2-у^2=55

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Автор ответа: selivanov1

x² заведомо должно быть больше 55. минимальное чсло x²>55 это x=8; если y=3 то условие выполнено: x²-y²=55. Очевидно, что для этих чисел 5x+3y тоже минимально

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