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ally786
@ally786
July 2022
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415пожалуйста решите
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Utem
(x²-9x)/(x+3)=36/(x+3)
x²-9x-36=0
D=(-9)²-4*(-36)=81+144=225
x=(9-15)/2=-3 x=(9+15)/2=12
2x²+4x+m+1=0
Уравнение не имеет корней если дискриминант меньше 0.
D=4²-4*2*(m+1)<0
16-8m-8<0
-8m+8<0
-8m<-8
m>1
Ответ: при m>1
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Answers & Comments
x²-9x-36=0
D=(-9)²-4*(-36)=81+144=225
x=(9-15)/2=-3 x=(9+15)/2=12
2x²+4x+m+1=0
Уравнение не имеет корней если дискриминант меньше 0.
D=4²-4*2*(m+1)<0
16-8m-8<0
-8m+8<0
-8m<-8
m>1
Ответ: при m>1