﹙x²-4x-21﹚÷﹙x﹢3﹚

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/16 00:10:03

﹙x²-4x-21﹚÷﹙x﹢3﹚
﹙x²-4x-21﹚÷﹙x﹢3﹚

﹙x²-4x-21﹚÷﹙x﹢3﹚
﹙x²-4x-21﹚÷﹙x﹢3﹚
=﹙x-7﹚﹙x+3﹚÷﹙x﹢3﹚
=X-7

x-7