要利用因式分解求,要过程,急!请学霸帮帮忙!

2025-03-22 18:26:18
推荐回答(2个)
回答1:

看图

回答2:

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