Предмет: Геометрия, автор: drosha1212

Найди корни уравнения x2−14x+2=0.

Ответы

Автор ответа: aastap7775

$x^2-14x+2=0\\x^2-14x+49-47=0\\(x-7)^2 - (\sqrt{47})^2=0\\(x-7-\sqrt{47})(x-7+\sqrt{47})=0\\x_1 = 7 + \sqrt{47}\\x_2 = 7 - \sqrt{47}\\Answer: \\x_1 = 7 + \sqrt{47}\\x_2 = 7 - \sqrt{47}\\$

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