2007^2-2006*2007如何做?和x(x-y)^2-y(x-y)的因式分解

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2007^2-2006*2007如何做?和x(x-y)^2-y(x-y)的因式分解
2007^2-2006*2007如何做?和x(x-y)^2-y(x-y)的因式分解

2007^2-2006*2007如何做?和x(x-y)^2-y(x-y)的因式分解
2007^2-2006*2007
=2007×(2007-2006)
=2007
x(x-y)^2-y(x-y)
=(x-y)×(x^2-xy-y)
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2007^2-2006*2007
=2007(2007-2006)
=2007
x(x-y)^2-y(x-y)
=(x-y)(x(x-y)-y)
=(x-y)(x^2-xy-y)

2007^2-2006*2007=2007(2007-2006)=2007
x(x-y)^2-y(x-y)=(x-y)[x(x-y)-y]=(x-y)(X^2-XY-Y)