因式分解x^2+xy-2y^2-x-4y-2

因式分解:12xy^2(y-x)+xy^3(x-y)+4x^2y(x-y) 2x(x-y)+4xy(y-x) 因式分解2x(x-y)+4xy(y-x) 因式分解 x^2-xy-4+2y因式分解 因式分解4x^-xy-2y^ (x-y)^2+4xy怎样因式分解 3x^+4xy-2y^ 因式分解 (x-y)^2+4xy因式分解, 因式分解：x方y+2xy+y 因式分解：x×x-xy-2y×y-x-y 因式分解 x-xy+3y-3x 2x+xy-y-4x+5y-6 (x+y)/x /(x-(2xy-y^2)/x) 因式分解 因式分解x^2(x-y)-4xy(x-y)-4y^2(y-x) 因式分解2x(x-y)^4 - x²(x-y)² + xy(y-x)²RT 4x^2y-6xy^2+2xy因式分解 因式分解：-4x^2y-6xy^2+2xy 因式分解：x-4xy-2xy+8y等于? -xy^2(x+y)^3+x(x+y)^2因式分解 因式分解:8(x-2y)-x(7x+y)+xy.