СРОООООООООЧНОО!!!!!
]1)3x²-6x=0 \left \{ {x=0} \atop {3x-6=0}} \right. \left \{ {x=0} \atop {3x-6}} \right. \left \{ {x=0} \atop {x=6:3}} \right. \left \{ {x=0} \atop {x=2}} \right. xє {0,2}