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RenauItFT
@RenauItFT
July 2022
2
7
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Решите уравнение
−3
x
²
−14x−7=
(
x−1
)
²
.
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Answers & Comments
li0ness
−3x²−14x−7=x²-2x+1
-3x²-14x-7-x²+2x-1=0
-4x²-12x-8=0
x²+3x+2=0
D=9-8=1
x1=(-3+1)/2=-1
x2=(-3-1)/2=-2
Ответ: -1, -2
2 votes
Thanks 3
05shagabudin05
Вроде так решается вот фото
1 votes
Thanks 2
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Answers & Comments
-3x²-14x-7-x²+2x-1=0
-4x²-12x-8=0
x²+3x+2=0
D=9-8=1
x1=(-3+1)/2=-1
x2=(-3-1)/2=-2
Ответ: -1, -2