Решите уравнение а) (3x²-2x-5)(x+2)=0. Created by arsen20002012. algebra-ru

Решите уравнение а) (3x²-2x-5)(x+2)=0...

arsen20002012 @arsen20002012

July 2022 1 8 Report

Решите уравнение
а) (3x²-2x-5)(x+2)=0

Answers & Comments

duadna23 Или первая скобка равна 0, или вторая: 3х^2-2х-5=0 или х+2=0;х=-2;Д=4-4*3*(-5)=64=8*8;х1=(2-8)/6=-1;
х2=(2+8)/6=5/3=1 2/3.Ответ: -2;-1;1 целая 2/3

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