x(x+y)^2(1-y)-x(y+x)^2(提取公因式法)
问题描述:
x(x+y)^2(1-y)-x(y+x)^2(提取公因式法)
答
提取公因式法
x(x+y)^2(1-y)-x(y+x)^2
=x(x+y)^2(1-y)-x(x+y)^2
=x(x+y)^2[(1-y)-1]
=-xy(x+y)^2