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Kara2015
@Kara2015
July 2022
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20 БАЛЛОВ!!!!ПОЖАЛУЙСТА ПОМОГИТЕ.
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dbookerkst
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0 votes
Thanks 1
Asjok426
(х^2-7)^2+6(х^2-7)-16=0 Обозначим (х^2-7)=t при условии что t>=0
t^2+6t-16=0
t1=-8(не удовлетворяет условию) t2=2
t=х^2-7
х^2-7=2
x^2=2+7
x^2=9
x1=3 x2=-3
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0 votes
Thanks 1
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Answers & Comments
t^2+6t-16=0
t1=-8(не удовлетворяет условию) t2=2
t=х^2-7
х^2-7=2
x^2=2+7
x^2=9
x1=3 x2=-3
Все остальные также