Предмет: Алгебра, автор: ChernovDm1997

4х^4-9x^2+2=0...............................................

Ответы

Автор ответа: m11m

4x⁴ - 9x² +2=0
Пусть х² =у
4у² -9у+2=0
Д=81-4*4*2=81-32=49
у₁=9-7= 1/4
8
у₂=9+7=2
8

При у=1/4
х²=1/4
х=-1/2
х=1/2

При у=2
х²=2
х=-√2
х=√2

Ответ: -√2; -1/2; 1/2; √2.

Автор ответа: katerina961

у меня неправильно.
получается
x²=t
x1=√0,5
x2=√2

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