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136791
@136791
July 2022
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Лева12345678
Домножим все на 3x+1
3x^2-6x-2=2x+1
3x^2-6x-2-2x-1=0
3x^2-8x-3=0
решаем квадратное уравнение
D=b^2-4ac=64+36=100=10^2
x=-b±корD/2a=8±10/6
x1=3
x2=-2/3
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Answers & Comments
3x^2-6x-2=2x+1
3x^2-6x-2-2x-1=0
3x^2-8x-3=0
решаем квадратное уравнение
D=b^2-4ac=64+36=100=10^2
x=-b±корD/2a=8±10/6
x1=3
x2=-2/3