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Djulhaus
@Djulhaus
July 2022
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Ребяяятаа,по-братски
2x^2 + x -1 / x+1 =3x+1
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Матов
Verified answer
2x^2+x-1=(3x+1)(x+1)
2x^2+x-1=3x^2+4x+1
x^2+3x+2=0
D=9-4*1*2=1^2
x=(-3+1)/2=-1
x=(-3-1)/2=-2
Ответ -1 и -2
3 votes
Thanks 2
Djulhaus
спасибо большое :*
Матов
нзч
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Answers & Comments
Verified answer
2x^2+x-1=(3x+1)(x+1)2x^2+x-1=3x^2+4x+1
x^2+3x+2=0
D=9-4*1*2=1^2
x=(-3+1)/2=-1
x=(-3-1)/2=-2
Ответ -1 и -2