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allagureva
@allagureva
July 2022
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Добрый вечер! Помогите пожалуйста с решением системы уравнений . Решить необходимо удобным способом.
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sedinalana
Y=-3/x
4x²+9/x²=13
4x^4-13x²+9=0
x²=t
4t²-13t+9=0
D=169-144=25
t1=(13-5)/8=1⇒x²=1⇒x=-1 U x=1⇒y=3 U y=-3
Ответ (-1;3);(1;-3)
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Answers & Comments
4x²+9/x²=13
4x^4-13x²+9=0
x²=t
4t²-13t+9=0
D=169-144=25
t1=(13-5)/8=1⇒x²=1⇒x=-1 U x=1⇒y=3 U y=-3
Ответ (-1;3);(1;-3)