Определите число решений системы уравнений y= -х^2+6х-4 2x-y+3=0

medweghonok medweghonok    1   10.07.2019 23:50    0

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daniildorunov daniildorunov  03.10.2020 00:46
2х - y + 3 = 0 ; y = 2x + 3
- x^2 + 6x - 4 = 2x + 3
- x^2 + 4x - 7 = 0
D = 16 - 28 = - 12
D < 0
Система не имеет решений
ответ 0
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