Question

 Упростите  на   ОДЗ:

Answer 1

[х- 3/(х-1)] * [2*(1-х)/(6+2х-2х²)] = [(х*(х-1)-3)/(х-1)] * [2*(х-1)/(2х²-2х-6)]=

= [(х²-х-3)/(х-1)] * [2*(x-1)/2*([x²-x-3)] = 1