x²y-3xy²+2yx²-y²x

来源：学生作业帮助网 编辑：作业帮 时间：2024/05/02 23:36:51
x²y-3xy²+2yx²-y²x

x²y-3xy²+2yx²-y²x
x²y-3xy²+2yx²-y²x

x²y-3xy²+2yx²-y²x
x²y-3xy²+2yx²-y²x
=3x²y-4xy²