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vitalinaguseva
@vitalinaguseva
August 2022
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найдите сумму корней уравнения 3x( x - 2 )=x-4
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ShirokovP
Verified answer
3x^2 - 6x = x - 4
3x^2 - 6x - x + 4 = 0
3x^2 - 7x + 4 = 0
D = 49 - 48 = 1
x1 = (7 + 1)/6 = 8/6 = 4/3
x2 = (7 - 1)/6 = 6/6 = 1
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Answers & Comments
Verified answer
3x^2 - 6x = x - 43x^2 - 6x - x + 4 = 0
3x^2 - 7x + 4 = 0
D = 49 - 48 = 1
x1 = (7 + 1)/6 = 8/6 = 4/3
x2 = (7 - 1)/6 = 6/6 = 1