x^2 +1-6x=-(х-3) или x^2 +1-6x=х-3 x^2 +1-6x = -х+3 x^2 +1-6x=х-3 x^2-6х+х=3-1 x^2-6х-х=-3-1 x^2-5х=2 x^2-7х=-4 х(х-5)=2 х(х-7)=4 х-5=1/2х х-7=1/4х х-1/2х=5 х-1/4х=7 1/2х=5 3/4х=7 х=10 х=28/3=9целыз1/3