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natashaangel99
@natashaangel99
July 2022
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решите биквадратное уравнение х^4-5х^2+4=0
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Answers & Comments
MoscoW779
T=x^2
t^2-5t+4=0
t=1;4
x^2=1 || x^2=4
x=1; -1; 4; -4;
1 votes
Thanks 3
natashaangel99
откуда 1??
Dukazahn
Natashaangel99, поверь, он правильно решил
Dukazahn
просто заменил X^2 на новую переменную t
5370330
там все правельно
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Answers & Comments
t^2-5t+4=0
t=1;4
x^2=1 || x^2=4
x=1; -1; 4; -4;