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Mandarink0
@Mandarink0
July 2022
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Решите уравнение плиииз. Алгебра 8 класс квадратные уравнения.
( x-3)(x-2)+5x^2 = (x-1)^2 -7
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ShirokovP
Verified answer
X^2 - 5x + 6 + 5x^2 = x^2 - 2x + 1 - 7
6x^2 - 5x + 6 = x^2 - 2x - 6
6x^2 - x^2 - 5x + 2x + 6 + 6 = 0
5x^2 - 3x + 12 = 0
D = 9 - 4*12*5 < 0
Действительных решений не имеет
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Answers & Comments
Verified answer
X^2 - 5x + 6 + 5x^2 = x^2 - 2x + 1 - 76x^2 - 5x + 6 = x^2 - 2x - 6
6x^2 - x^2 - 5x + 2x + 6 + 6 = 0
5x^2 - 3x + 12 = 0
D = 9 - 4*12*5 < 0
Действительных решений не имеет