化简 (3/a+1 -1)÷a²-4a+4/a+1
来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/18 11:29:20
化简(3/a+1-1)÷a²-4a+4/a+1化简(3/a+1-1)÷a²-4a+4/a+1化简(3/a+1-1)÷a²-4a+4/a+1原式=(3-a-1)/(a+1)
化简 (3/a+1 -1)÷a²-4a+4/a+1
化简 (3/a+1 -1)÷a²-4a+4/a+1
化简 (3/a+1 -1)÷a²-4a+4/a+1
原式
=(3-a-1)/(a+1)÷(a-2)²/(a+1)
=(2-a)/(a-2)²
=1/(2-a)