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Garfild217
@Garfild217
July 2022
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Решите через дискриминант
6x^2-5x-1=0
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8MaLvina8
6x^2-5x-1=0
D=5^2-4*6*(-1)=25+24=49 корень из 49 = +-7
х1 =(-(-5)-7)/12=(5-7)/12=-1/6
х2 =
(-(-5)+7)/12=(5+7)/12=1
2 votes
Thanks 3
ДевушкаVЧерном
6x^2-5x-1=0
D=(-5)^2-4*6*(-1)=25+24=49; корень из D=7
x1=(5+7)/12=12/12=1
x2=(5-7)/12=-2/12=-1/6
Ответ: 1; -1/6
1 votes
Thanks 4
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Answers & Comments
D=5^2-4*6*(-1)=25+24=49 корень из 49 = +-7
х1 =(-(-5)-7)/12=(5-7)/12=-1/6
х2 =(-(-5)+7)/12=(5+7)/12=1
D=(-5)^2-4*6*(-1)=25+24=49; корень из D=7
x1=(5+7)/12=12/12=1
x2=(5-7)/12=-2/12=-1/6
Ответ: 1; -1/6