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Kronki2
@Kronki2
August 2022
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решите уравнение x^2=4+3x
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andrisd
Verified answer
Х²=4+3х
х²-3х-4=0
По теореме Виета:
х1+х2=3
х1*х2=-4
х1=-1
х2=4
Ответ: х1=-1 х2=4
2 votes
Thanks 1
Munkush
Verified answer
x^2=4+3x
x^2-4-3x=0
x^2-3x-4=0
D=
√25
x=(3+5)/2=4
x=(3-5)/2=-1
отв:x1=-1,x2=4
1 votes
Thanks 0
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Answers & Comments
Verified answer
Х²=4+3хх²-3х-4=0
По теореме Виета:
х1+х2=3
х1*х2=-4
х1=-1
х2=4
Ответ: х1=-1 х2=4
Verified answer
x^2=4+3xx^2-4-3x=0
x^2-3x-4=0
D=√25
x=(3+5)/2=4
x=(3-5)/2=-1
отв:x1=-1,x2=4