分解因式:(y-x)²-2x-2y错了,是(y-x)²+2x-2y~
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 12:47:56
![分解因式:(y-x)²-2x-2y错了,是(y-x)²+2x-2y~](/uploads/image/z/919154-2-4.jpg?t=%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9A%28y-x%29%26%23178%3B-2x-2y%E9%94%99%E4%BA%86%EF%BC%8C%E6%98%AF%28y-x%29%26%23178%3B%2B2x-2y%7E)
分解因式:(y-x)²-2x-2y错了,是(y-x)²+2x-2y~
分解因式:(y-x)²-2x-2y
错了,是(y-x)²+2x-2y~
分解因式:(y-x)²-2x-2y错了,是(y-x)²+2x-2y~
(y-x)²+2x-2y=(x-y)²+2(x-y)=(x-y)(x-y+2)
(y-x)²+2x-2y
=(y-x)²-2(y-x)
=(y-x)(y-x-2)
(x-1)²+(y-1)²-2(xy+1)
(y-x)(y-x-2)
(x+y)(y-x-2)