x²(x-1)-4(x-1)=0
(x²-4)(x-1)=0
(x-2)(x+2)(x-1)=0
x1= 2, x2= -2, x3= 1
х-2>2
x>4
x² -2≥2
x² -4≥0
(x-2)(x+2)≥0
1)2(х-1)=3(2х-1)