初二数学、有关于提公因式法、擅长的进来吧~x(x+y)(x-y)-x(y+x)^2_数学解答

初二数学、有关于提公因式法、擅长的进来吧~
x(x+y)(x-y)-x(y+x)^2

人气：413 ℃　时间：2020-03-12 11:20:27

解答

x(x+y)(x-y)-x(y+x)²
=x(x+y)(x-y)-x(x+y)²
=x(x+y)(x-y-x-y)
=x(x+y)(-2y)
=-2xy(x+y)