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Darkoko
@Darkoko
July 2022
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решите уравнение:
(х+3/5)^6 - 9(х+3/5)^3 + 8=0
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Ртуть3
Verified answer
(х+3/5)^6 - 9(х+3/5)^3 + 8=0
]
(х+3/5)^3=a
a^2-9a+8=0
По Тh Виетта:
a1=8
a2=1
СОЗ:
(х+3/5)^3=8 или (х+3/5)^3=1
х+3/5=2 х+3/5=1
x=2-3/5 х=1-3/5
х=7/5 х=2/5
х=1.4 х=0.4
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Answers & Comments
Verified answer
(х+3/5)^6 - 9(х+3/5)^3 + 8=0] (х+3/5)^3=a
a^2-9a+8=0
По Тh Виетта:
a1=8
a2=1
СОЗ:
(х+3/5)^3=8 или (х+3/5)^3=1
х+3/5=2 х+3/5=1
x=2-3/5 х=1-3/5
х=7/5 х=2/5
х=1.4 х=0.4