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nikzaytsev001
@nikzaytsev001
July 2022
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Решите неравенство, пожалуйста!
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sedinalana
Verified answer
1
5x²-4x-1<0
D=16+20=36
x1=(4-6)/10=-0,2
x2=(4+6)/10=1
x∈(-0,2;1)
2
6x²+7x+1>0
D=49-24=25
x1=(-7-5)/12=-1
x2=(-7+5)/12=-1/6
x∈(-∞;-1) U (-1/6;∞)
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nastyalevywka
Это в, сейчас г решу. Вы так решаете?
1 votes
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nikzaytsev001
Да-да, так) Спасибо)
nikzaytsev001
Огроменое спасибооо))
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Answers & Comments
Verified answer
15x²-4x-1<0
D=16+20=36
x1=(4-6)/10=-0,2
x2=(4+6)/10=1
x∈(-0,2;1)
2
6x²+7x+1>0
D=49-24=25
x1=(-7-5)/12=-1
x2=(-7+5)/12=-1/6
x∈(-∞;-1) U (-1/6;∞)