因式分解4xy^2-4x^2y-y^3...

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因式分解4xy^2-4x^2y-y^3...因式分解4xy^2-4x^2y-y^3...因式分解4xy^2-4x^2y-y^3...4xy²-4x²y-y^3=y(4xy-4x&#

因式分解4xy^2-4x^2y-y^3...
因式分解4xy^2-4x^2y-y^3
...

因式分解4xy^2-4x^2y-y^3...
4xy²-4x²y-y^3
=y(4xy-4x²-y²)
=-y(4x²-4xy+y²)
=-y(2x-y)²

4xy^2-4x^2y-y^3
= -y(y²-4xy+4x²)
= -y(y-2x)²