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глория18
@глория18
July 2022
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3x+1/x+2=1+x-1/x-2 решите уравнение
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sedinalana
Verified answer
(3x+1)/(x+2)=1+(x-1)/(x-2)
x≠-2 x=2
(3x+1)(x-2)=(x+2)(x-2)+(x-1)(x+2)
3x²-6x+x-2-x²+4-x²-2x+x+2=0
x²-6x+4=0
D=36-16=20
x1=(6-2√5)/2=3-√5
x2=3+√5
4 votes
Thanks 8
глория18
я уже решила спасибо
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Answers & Comments
Verified answer
(3x+1)/(x+2)=1+(x-1)/(x-2)x≠-2 x=2
(3x+1)(x-2)=(x+2)(x-2)+(x-1)(x+2)
3x²-6x+x-2-x²+4-x²-2x+x+2=0
x²-6x+4=0
D=36-16=20
x1=(6-2√5)/2=3-√5
x2=3+√5