решите уравнение: (х+3/5)^6 - 9(х+3/5)^3 + 8=0. Created by Darkoko. algebra-ru

5)^3 + 8=0...

Darkoko @Darkoko

July 2022 1 9 Report

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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