6х^2+9х-2х-3=6х-3
6х^2+7х-3-6х+3=0
6х^2+х=0
Х*(6х+1)=0
Х=0
6х+1=0
6х=-1
Х=-1/6
1. - 1) (2а)
2. - 4) (7х-1)