作业帮计算(a三次方-a)/(a²+2a+1)
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/05 22:20:40
计算(a三次方-a)/(a²+2a+1)
计算(a三次方-a)/(a²+2a+1)
计算(a三次方-a)/(a²+2a+1)
(a三次方-a)/(a²+2a+1)
=a(a²-1)/(a+1)²
=a(a-1)(a+1)/(a+1)²
=a(a-1)/(a+1);
如果本题有什么不明白可以追问,
(a三次方-a)/(a²+2a+1)
=a(a²-1)/(a+1)²
=a(a-1)/(a+1)