2х^3 - 6х + 4 = 0
2x^3 - 2x - 4x +4 = 0
2x(x+1)(x-1) - 4(x-1) = 0
(x-1)(2x(x+1) -4) = 0
2x(x+1) -4 = 0 или x-1=0
x^2 + x - 2 = 0 x3=1
D=1-4(-2) = 9
x1=(1-3)/2=-1 или х2=(1+3)/2=2
ответ: -1; 1; 2
2х^3 - 6х + 4 = 0
2x^3 - 2x - 4x +4 = 0
2x(x+1)(x-1) - 4(x-1) = 0
(x-1)(2x(x+1) -4) = 0
2x(x+1) -4 = 0 или x-1=0
x^2 + x - 2 = 0 x3=1
D=1-4(-2) = 9
x1=(1-3)/2=-1 или х2=(1+3)/2=2
ответ: -1; 1; 2