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Leyasima13
@Leyasima13
July 2022
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Срооочно!Помогите пожалуйста!
3(x-3)^2+2x(3-x)=0
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a21140531
3(x^2-6x+9)+6x-2x^2=0
3x^2-12x+27+6x-2x^2=0
x^2-6x+27=0
D=36-108=-72
х=3+-ND
x1=3+6N2 x2=3-6N2
1 votes
Thanks 1
Leyasima13
А что значит D и ND?
a21140531
D - дискриминант N - корень
Leyasima13
А,что значит дискриминант?
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Answers & Comments
3x^2-12x+27+6x-2x^2=0
x^2-6x+27=0
D=36-108=-72
х=3+-ND
x1=3+6N2 x2=3-6N2