x(x-1)-2Y(2Y+1)

要因式分解~
2025-12-14 07:02:10
推荐回答(2个)
回答1:

原式=x^2-4y^2-x-2y
=(x+2y)(x-2y)-(x+2y)
=(X+2Y)(X-2Y-1)

回答2:

(X+2Y)(X-2Y-1)