因式分解 x(x+y)(x-y)-2x(x+y)

2025-06-21 17:12:20
推荐回答(1个)
回答1:

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