Пошаговое объяснение:
kx = -x² - 1
x² + kx + 1 = 0
D = b² - 4ac = k² - 4
D = 0 k² - 4 = 0
k² = 4
k1 = 2; k2 = -2
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Пошаговое объяснение:
kx = -x² - 1
x² + kx + 1 = 0
D = b² - 4ac = k² - 4
D = 0 k² - 4 = 0
k² = 4
k1 = 2; k2 = -2