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