August 2021 0 7 Report
Какое из данных квадратных уравнений имеет два различных корня? А) x 2 + 10x + 25 = 0; В) x 2 – 2x + 7 = 0; Б) x 2 – 9x + 8 = 0; Г) x 2 – 4x + 20 = 0.
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