Предмет: Алгебра, автор: simovskaya

Пожалуйста помогите решить это квадратное уравнение!!!! Заранее благодарю))

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Автор ответа: danulpopov

x² +2bx -3 = 0
По т. Виета
x1 + 3 = -2b
x1 * 3 = -3
из 2го уравнения x1 = -1
подставим в 1е: -1 + 3 = -2b, отсюда b = -1;

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