初一因式分解2道x^2-xy-2y^2-3x+2x^3+x^2-4x+2

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初一因式分解2道x^2-xy-2y^2-3x+2x^3+x^2-4x+2
初一因式分解2道
x^2-xy-2y^2-3x+2
x^3+x^2-4x+2

初一因式分解2道x^2-xy-2y^2-3x+2x^3+x^2-4x+2
=x²-2xy-2x+xy-2y²-2y-x+2y+2
=x(x-2y-2)+y(x-2y-2)-(x-2y-2)
=(x-2y-2)(x+y-1)
=x³-x²+2x²-2x-2x+2
=x²(x-1)+2x(x-1)-2(x-1)
=(x-1)(x²+2x-2)

因式分解：x方y+2xy+y 初一因式分解2道x^2-xy-2y^2-3x+2x^3+x^2-4x+2 2x^2-xy-y^2因式分解因式分解x^2+xy-2y^2 X^2Y-2XY^2 因式分解因式分解:-x^2+2xy-y^2 xy+2x+y+2因式分解因式分解:x^2y+xy^2=? x^2-xy-4+2y因式分解 xy-2x+y-2因式分解, (x+2y)^2-8xy 因式分解因式分解x^2-3xy+y^2 x^2-3xy+y^2因式分解因式分解-X^2+2XY-Y^3 因式分解:x²y²-xy-2 -2xy-x²-y²因式分解因式分解 x²-2xy+y² 因式分解4x^-xy-2y^