(x-2y)(x+2y)-(x+2y)눀

2025-06-27 20:21:09
推荐回答(2个)
回答1:

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

回答2:

-4y(x+2y)