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Pollyru
@Pollyru
August 2022
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Ртуть3
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Общий знаменатель:x^2-3x-4=(x+1)(x-4)
Домножаем на него обе части:
3x(x+1)+10=-2(x-4)
3x^2+3x+10=-2x+8
3x^2+3x+10+2x-8=0
3x^2+5x+2=0
D=25-24=1
x1=(-5-1)/6=-6/6=-1
x2=(-5+1)/6=-4/6=-2/3
ОДЗ:x≠-1
x≠4
Ответ:-2/3
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Answers & Comments
Verified answer
Общий знаменатель:x^2-3x-4=(x+1)(x-4)Домножаем на него обе части:
3x(x+1)+10=-2(x-4)
3x^2+3x+10=-2x+8
3x^2+3x+10+2x-8=0
3x^2+5x+2=0
D=25-24=1
x1=(-5-1)/6=-6/6=-1
x2=(-5+1)/6=-4/6=-2/3
ОДЗ:x≠-1
x≠4
Ответ:-2/3