因式分解:(x+y-2xy)(x+y-2)+(xy-1)^2

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 17:46:33
因式分解:(x+y-2xy)(x+y-2)+(xy-1)^2
x){:{=O;^,_lQ]kTQ ahjkTTj$TΆ$smAš 0f,p66RD(PJtn-.H̳:ywuӁnc9q>l'xfH̢z

因式分解:(x+y-2xy)(x+y-2)+(xy-1)^2
因式分解:(x+y-2xy)(x+y-2)+(xy-1)^2

因式分解:(x+y-2xy)(x+y-2)+(xy-1)^2
=[(x+y)-2xy][(x+y)-2]+(xy-1)^2
=(x+y)^2-2(x+y)(xy+1)+4xy+(xy-1)^2
=(x+y)^2-2(x+y)(xy+1)+(xy+1)^2
=(x+y-xy-1)^2

你算式中“^”的是什么符号