多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x²-4xy) 求过程,
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![多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x²-4xy) 求过程,](/uploads/image/z/744479-71-9.jpg?t=%E5%A4%9A%E9%A1%B9%E5%BC%8F%E5%9B%A0%E5%BC%8F%E5%88%86%E8%A7%A3+1%2C%28x-y%29%26%23179%3B-%28x-y%29%26%23178%3B%28x%2By%29+2%2Cx%28x%26%23178%3B-xy%29-%284x%26%23178%3B-4xy%29+%E6%B1%82%E8%BF%87%E7%A8%8B%2C)
多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x²-4xy) 求过程,
多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x²-4xy) 求过程,
多项式因式分解 1,(x-y)³-(x-y)²(x+y) 2,x(x²-xy)-(4x²-4xy) 求过程,
1,(x-y)³-(x-y)²(x+y)
=(x-y)²(x-y-x-y)
=-2y(x-y)²
2,x(x²-xy)-(4x²-4xy)
=x²(x-y)-4x(x-y)
=x(x-y)(x-4)
(X-Y)^2(X-Y-X-Y)
=2Y(X-Y)^2
(X^2-XY)(X-4)
=X(X-4)(X-Y)
1.(x-y)²(x-y-x-y)=-2y(x-y)²过程应该看得懂吧 看不懂可以再问
2.x²(x-y)-4x(x-y)=x(x-4)(x-y)
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