(x-2y)²+16y-8x+16

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/01 14:12:45
(x-2y)²+16y-8x+16

(x-2y)²+16y-8x+16
(x-2y)²+16y-8x+16

(x-2y)²+16y-8x+16
(x-2y)²+16y-8x+16
=(x-2y)²-8(x-2y)+16
=(x-2y-4)²