化简：（2X-5X+3X-2）/2X-X+1

分类: 作业答案 • 2022-01-29 21:54:21

问题描述：

答

=2X-4X-X+2X-1+X-1/2X-X+1 =2X（X-2)-(X-1)+(X-1)/2X-X+1 =2X(X-2)-(X-1)(X-1-1)/2X-X+1 =(X-2)（2X-X+1）/2X-X+1 =X-2