化简(a²/a+1-a+1)÷a/a²-1

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/15 08:24:32
化简(a²/a+1-a+1)÷a/a²-1

化简(a²/a+1-a+1)÷a/a²-1
化简(a²/a+1-a+1)÷a/a²-1

化简(a²/a+1-a+1)÷a/a²-1

原式=(a²/a+1-1/a+1)a²/a-1
=(a²-1/a+1)a-1
=[(a+1)(a-1)/a+1]a-1
=(a-1)a-1
=a²-a-1