Объяснение:
2х³-3х²+3х-1=2х³-2х²-x²+2х+x-1=
=(2х³-x²)+(-2х²+x)+(2x-1)=
=2x²(x-0.5)-2x(x-0.5)+2(x-0.5)=
=(x-0.5)(2x²-2x+2)
