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Elizabeth65789
@Elizabeth65789
July 2022
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10x²-2=x
хэээлп, по формуле корней кв. уравнений. 8 класс
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sangers
10x²-2=x
10x²-x-2=0 D=81 √D=9
x₁,₂=(1+/-9)/20
x₁=0,5 x₂=-0,4
Ответ: x₁=0,5 x=-0,4
0 votes
Thanks 1
Anzh2000
10x2−2−x
=x−x
10x2−x−2
=
0
(5x+2)
(2x−1)
=
0
5x+2
=
0 или
2x
−1
=0
x=
−2/5
или x=1/2
2 votes
Thanks 2
Elizabeth65789
большое спасибо:)
sangers
Удачи.
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Answers & Comments
10x²-x-2=0 D=81 √D=9
x₁,₂=(1+/-9)/20
x₁=0,5 x₂=-0,4
Ответ: x₁=0,5 x=-0,4
(5x+2)(2x−1)=0
5x+2=0 или 2x−1=0x=−2/5 или x=1/2