大家帮我做个简单数学题

2025-06-22 10:48:41
推荐回答(1个)
回答1:

x^+3xy+2y^=x^+y^+2xy+xy+2y^=(x+y)^+y(x+y)=
(x+y)(x+y+y)=(x+y)(x+2y)