广州云台山花园:因式分解xy-x-y+1
来源:百度文库 编辑:杭州交通信息网 时间:2024/07/02 03:42:56
xy-x-y+1
=x(y-1)-y+1
=x(y-1)-(y-1)
=(y-1)(x-1)
x(y-1)-y+1
X(y-1)+(y-1)
(X+1)(Y-1)的平方
应该是吧
不确定
=(Xy-X)+(-y+1)
=X(y-1)-(y-1)
=(y-1)(X-1)
(x-1)(y-1)
xy-x-y+1
=x(y-1)-y+1
=x(y-1)-(y-1)
=(y-1)(x-1)
x(y-1)-y+1
X(y-1)+(y-1)
(X+1)(Y-1)的平方
应该是吧
不确定
=(Xy-X)+(-y+1)
=X(y-1)-(y-1)
=(y-1)(X-1)
(x-1)(y-1)