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vika70rus
@vika70rus
July 2022
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х^8-82x^4+81=0
СРОЧНО НАДО РЕШИТЬ !!!ПОМОГИТЕ!!!
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m11m
Verified answer
Y=x⁴
y²=x⁸
y² -82y+81=0
По т Виета:
y₁=81
y₂=1
При у=1
x⁴=1
x₁=1
x₂= -1
При у=81
x⁴=81
x⁴=3⁴=(-3)⁴
x₁=3
x₂= -3
Ответ: -3; -1; 1; 3.
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vika70rus
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m11m
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Answers & Comments
Verified answer
Y=x⁴y²=x⁸
y² -82y+81=0
По т Виета:
y₁=81
y₂=1
При у=1
x⁴=1
x₁=1
x₂= -1
При у=81
x⁴=81
x⁴=3⁴=(-3)⁴
x₁=3
x₂= -3
Ответ: -3; -1; 1; 3.