х=2хварианты ответа: а) х=2,х=-2; б) х=3,х=-3; в) х=4,х=-4; г) х=1,х=-1;...

cchhiillyy123 @cchhiillyy123

July 2022 1 14 Report

ДАЮ 50 БАЛЛОВ!! Знайти корені рівняння 3х^2-4/х=2х
варианты ответа: а) х=2,х=-2; б) х=3,х=-3; в) х=4,х=-4; г) х=1,х=-1;

Answers & Comments

Clever46

Ответ:

а) х=2,х=-2

Объяснение:

$\frac{3x^{2}-4 }x}=2x$

$\frac{3x^{2}-4 }x}-2x=0$

$\frac{3x^{2}-4-2x^{2}}x}=0$

$\frac{x^{2}-4}x}=0$

$\left \{ {{x^{2}-4 =0} \atop {x\neq 0}} \right.$

x²-4=0

(x-2)(x+2)=0

x₁=2, x₂= -2

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