x² - (7+6x) = 0
x² - 6x - 7 = 0
D = 36 + 28 = 64
x = -1 или х = 7
Ответ: -1; 7
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x² - (7+6x) = 0
x² - 6x - 7 = 0
D = 36 + 28 = 64
x = -1 или х = 7
Ответ: -1; 7