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ashteba
@ashteba
July 2022
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помогите , решить очень срочно надо , даю 70 баллов
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IUV
Verified answer
(x^2-14)/x-10x/(x^2-14)=3
(x^2-14)/x=t
t-10/t=3
квадратное уравнение
t^2-3t-10=0
d=49
t1=(3-7)/2=-2
t2=(3+7)/2=5
****************
(x^2-14)/x=-2
x^2+2x-14=0
d=4+56=60
x1=-1-корень(15)
x2=-1+корень(15)
****************
(x^2-14)/x=5
x^2-5x-14=0
d=25+56=81
x3=(5-9)/2=-2
x4=(5+9)/2=7
0 votes
Thanks 1
IUV
x1=-1-корень(15)
x2=-1+корень(15)
x3=-2
x4=7
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Answers & Comments
Verified answer
(x^2-14)/x-10x/(x^2-14)=3(x^2-14)/x=t
t-10/t=3
квадратное уравнение
t^2-3t-10=0
d=49
t1=(3-7)/2=-2
t2=(3+7)/2=5
****************
(x^2-14)/x=-2
x^2+2x-14=0
d=4+56=60
x1=-1-корень(15)
x2=-1+корень(15)
****************
(x^2-14)/x=5
x^2-5x-14=0
d=25+56=81
x3=(5-9)/2=-2
x4=(5+9)/2=7
x2=-1+корень(15)
x3=-2
x4=7