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moiseenkonasta
@moiseenkonasta
June 2022
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решите уравнение
3x^4-5x^2+2=0
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uekmyfhfp
3 x^4 - 5 x^2 +2 = 0;
x^2 = t ≥ 0;
3 t^2 - 5t + 2 = 0;
D = 25 - 24 = 1 = 1^2;
t1 = 1; ⇒ x^2 = 1 ; x = +- 1;
t2 = 2/3; ⇒ x^2 = 2/3; x = + - sgrt(2/3)
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Answers & Comments
x^2 = t ≥ 0;
3 t^2 - 5t + 2 = 0;
D = 25 - 24 = 1 = 1^2;
t1 = 1; ⇒ x^2 = 1 ; x = +- 1;
t2 = 2/3; ⇒ x^2 = 2/3; x = + - sgrt(2/3)