1.
х(х-1)-2(х-1)/-(х-2)=0
(х-1)(х-2)/-(х-2)=0
-х-1=0
-х=-1
х=1
2.
t^2-13t+36=0
t=4 ; t=9
x^2=4 ; x^2=9
x=-2 ; x=2
x=-3; x=3
x1= -3; x2= -2; x3= 2; x4= 3
