〔x+y+z〕的平方-〔x-y-z〕的平方,分解因式是什么?

急.........
2025-02-27 22:32:15
推荐回答(2个)
回答1:

(x+y+z)^2-(x-y-z)^2
=(x+y+z+x-y-z)(x+y+z-x+y+z)
=2x(2y+2z)
=4x(y+z)

回答2:

4x(y+z)