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rusak666
@rusak666
July 2022
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6х^3+21х^2+9х=0
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koba80
6х^3+21х^2+9х=3х(2х^2+7х+3)=0
3х=0. Х1=0
2х^2+7х+3=0
D=b2 - 4ac=7^2-4×2×3=49-24=25
Х2=(-7+5)/2×2=-2/4= --1/2
Х3=(-7-5)/2×2=-12/4=-3
ответ: Х1=0, Х2=-1/2, Х3=-3
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Answers & Comments
3х=0. Х1=0
2х^2+7х+3=0
D=b2 - 4ac=7^2-4×2×3=49-24=25
Х2=(-7+5)/2×2=-2/4= --1/2
Х3=(-7-5)/2×2=-12/4=-3
ответ: Х1=0, Х2=-1/2, Х3=-3