(x+2)^4-4(x+2)^2-5=0...

July 2022 1 5 Report

(x+2)^4-4(x+2)^2-5=0

Answers & Comments

ukinbid (x+2)^4-4(x+2)^2-5=0
Замена
y^4-4y^2-5=0
y^2=5
y^2=-1-нет решений
(x+2)^2=5
x+2=+-√5
x=√5-2
x=-√5-2

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