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alinawertkowa
@alinawertkowa
July 2022
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решите уравнение х^3+4х^2-21х=0
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MrHelper98
Х^3+4х^2-21х=0x(х^2+4x-21)=0
x=0 х^2+4x-21 =0
D=100
x1=(-4+10)/2=3
x2=(-4-10)/2=-7
Ответ 0,-7,3
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Answers & Comments
x=0 х^2+4x-21 =0
D=100
x1=(-4+10)/2=3
x2=(-4-10)/2=-7
Ответ 0,-7,3