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оапрпрве5
@оапрпрве5
August 2022
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реши уравнение удобным способом. сроочно даю 25б
[tex] x^{2} - x=0[/tex]
[tex] x^{2} -10 x+21=0
[/tex]
[tex]2 x^{2} - x+3=0[/tex]
[tex] 3 x^{2} -4=0[/tex]
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DariosI
Verified answer
X(x-1)=0
x₁=0
x-1=0
x₂=1
x²-10x+21=0
D=100-4*21=16
x₁=(10-4)/2=3
x₂=(10+4)/2=7
2x²-x+3=0
D=1-4*3*2=1-24=-23<0 уравнение не имеет корней
3(х²-4/3)=0
3(х-2/√3)(х+2/√3)=0
х-2/√3=0
х₁=2/√3
х+2√3=0
х₂=-2√3
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Answers & Comments
Verified answer
X(x-1)=0x₁=0
x-1=0
x₂=1
x²-10x+21=0
D=100-4*21=16
x₁=(10-4)/2=3
x₂=(10+4)/2=7
2x²-x+3=0
D=1-4*3*2=1-24=-23<0 уравнение не имеет корней
3(х²-4/3)=0
3(х-2/√3)(х+2/√3)=0
х-2/√3=0
х₁=2/√3
х+2√3=0
х₂=-2√3