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karinalovas
@karinalovas
July 2022
1
4
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Помогитееее!!!!!!
решите неровность
1) x²-5х+4<0
2)x²+5х-6(больше ровно)0
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Answers & Comments
777erlan07
1) х^2-5х+4 <0
Д=25-4×1×4=9. +-3
х1=(5-3)/2=1
х2=(5+3)/2=4
(1:4)
2) х^2+5х-6> 0
Д=25-4×1×(-6)=49. +-7
х1=(-5-7)/2=-6
х2=(-5+7)/2=1
(-○○;-6]&[1;○○)
1 votes
Thanks 1
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Answers & Comments
Д=25-4×1×4=9. +-3
х1=(5-3)/2=1
х2=(5+3)/2=4
(1:4)
2) х^2+5х-6> 0
Д=25-4×1×(-6)=49. +-7
х1=(-5-7)/2=-6
х2=(-5+7)/2=1
(-○○;-6]&[1;○○)