(x^2+x-2x-x)-(x^2-2x-x-2)+0.2=0
x^2-x-2-x^2-x+2+0.2=0
-2x+0.2=0
-2x=-0.2
x=0.1
2х²+26≤0
2х²≤-26/2
х²≤-13
х≤-6,5