Представьте в виде дроби х+3/2х-4 : 3х+9/х2-4

(Х+3/2х-4)*(2х-4/9)=(х+3)(2х-4)/9(2х-4)=(х+3)/9

(х+3)/(2х-4) : (3х+9)/(х²-4)= (х+3)/(2х-4) × (х²-4)/(3х+9)=(х+3)/2(х-2) × (х-2)(х+2)/3(х+3)=(х+2)/6