【因式分解的】
因式分解的
1-14x24x–2x2–2(x-y)3–(y-x)x2–y2–x+yx2–y2-1(x+y)(x–y)x2+1x2-2-(x-1x)2a3-a2-2a4m2-9n2-4m+13a2+bc-3ac-ab9-x2+2xy-y22x2-3x-1-2x2+5xy+2y21...