(1)当x≥3时,原方程化为x 2-x=0,解得:x 1=0,x 2=1(不合题意,舍去)
(2)当x<3时,原方程化为x 2+x-6=0,解得:x 1=2,x 2=-3
所以原方程的根是x 1=2,x 2=-3