因式分解 x(x-y)-y(y-x) m²(x-1)+4(1-x) a²-4(a-b)² (2x-3y)²-4x² (3x+y)²9(a-b)²-16(a+b)²49(m-n)²-9(m+n)²

m(x-y)-n(y-x)因式分解 m(x+y)+n(x+y)-x-y因式分解 因式分解方法:m(x-y)(x-y)-x+y 求m（x-y)²x+y因式分解过程m（x-y)²-x+y 因式分解 （m+n)(x-y)- （m+n)(x+y) (m-n)(x-y)-(n-m)(x+y)因式分解 因式分解：(x+y)^2-2m(x+y)+m^2 因式分解m²+2m(x+y)+(x+y)² x*x-y*y-(x+y)(x+y),因式分解 因式分解;x²(x-y)+(y- x) 因式分解:x²(x-y)+(y-x) x(x-y)+4(y-x)因式分解 因式分解 x方(x-y)(y-x) 因式分解x(x+y)(x-y)-x(x+y)^2 x(x+y)(x-y)-x(x+y)² 因式分解 3m(x-y)-2（y-x）²因式分解 m(x-y)^n+n(y-x)^2n因式分解 mn(x-y)-m(y-x)的因式分解