计算a²/(a²+2a)*[(a²/a-2)-(a/a-2)]

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 16:30:44

计算a²/(a²+2a)*[(a²/a-2)-(a/a-2)]
计算a²/(a²+2a)*[(a²/a-2)-(a/a-2)]

计算a²/(a²+2a)*[(a²/a-2)-(a/a-2)]
a²/(a²+2a)*[(a²/a-2)-(a/a-2)]=a²(a-1)/(a²-4)