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Вавучо1
@Вавучо1
July 2022
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5х^2-3x-2=0 помогите ришить пж
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Answers & Comments
afanasevanatal
5х² - 3х - 2 = 0
5х² - 5х + 2х - 2 = 0
5х(х-1) + 2(х-1) = 0
(5х+2)(х-1) = 0
5х+2=0 или х-1=0
5х = -2 х = 1
х = -2/5
Ответ: х=-2/5; х=1
1 votes
Thanks 2
Banabanana
Verified answer
5х²-3х-2=0
D=b²-4ac=9-4*5*(-2)=9+40=49=7²
х1=3+7/10=1
х2=3-7/10=-0,4
1 votes
Thanks 1
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Answers & Comments
5х² - 5х + 2х - 2 = 0
5х(х-1) + 2(х-1) = 0
(5х+2)(х-1) = 0
5х+2=0 или х-1=0
5х = -2 х = 1
х = -2/5
Ответ: х=-2/5; х=1
Verified answer
5х²-3х-2=0D=b²-4ac=9-4*5*(-2)=9+40=49=7²
х1=3+7/10=1
х2=3-7/10=-0,4