x(x+y)(x-y)-x(x+y)²
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/01 18:45:21
x(x+y)(x-y)-x(x+y)²
x(x+y)(x-y)-x(x+y)²
x(x+y)(x-y)-x(x+y)²
x(x+y)(x-y)-x(x+y)²
=x(x+y)*[(x-y)-(x+y)]
=x(x+y)*(-2y)
你叫我求什么 啊
x(x+y)(x-y)-x(x+y)²
=x(x+y)[(x-y)-(x+y)]
=x(x+y)(-2y)
=-2xy(x+y)
是因式分解吗?x(x+y)(x-y-x-y)= -2xy(x+y)