因式分解:x2-9a2+12a-4;x2y+3xy2-x-3y;1-x2-2xy-y2;3a2+2b-2ab-3a;x2+y2+2xy+ax+ay;3x4-48y48a3-4a2-2a+1;x2-3xy-28y2;(x2-x)^2-4(x2-x)-12
问题描述:
因式分解:x2-9a2+12a-4;x2y+3xy2-x-3y;1-x2-2xy-y2;3a2+2b-2ab-3a;x2+y2+2xy+ax+ay;3x4-48y4
8a3-4a2-2a+1;x2-3xy-28y2;(x2-x)^2-4(x2-x)-12
答