因式分解6xy二次幂-9x二次幂y-y三次幂要过程
问题描述：
因式分解6xy二次幂-9x二次幂y-y三次幂要过程
答
6xy²-9x²y-y³
=-y(y²-6xy+9x²)
=-y(y-3x)²
答
=6xy^2-9x^2y-y^3
=y(6xy-9x^2-y^2)
=-y(3x-y)^2
答
6xy^2-9x^2y-y^3
=-y(y^2-6xy+9x^2)
=-y(y-3x)^2