4x²y-12xy²+9y³
问题描述:
4x²y-12xy²+9y³
答
因式分4x²y-12xy²+9y³
=y(4x²-12xy+9y²)
=y(2x-3y)²。
答
4x²y-12xy²+9y³
=y(4x²-12xy+9y²)
=y(2x-3y)².