a分之a²-ab除以(b分之a-a分之b)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/18 11:13:58
![a分之a²-ab除以(b分之a-a分之b)](/uploads/image/z/943378-34-8.jpg?t=a%E5%88%86%E4%B9%8Ba%26%23178%3B-ab%E9%99%A4%E4%BB%A5%28b%E5%88%86%E4%B9%8Ba-a%E5%88%86%E4%B9%8Bb%29)
x)K|dgwnb˙K^ׅ*HҴI*'E~
-)@OHOMOHF'j$d *
L:*iP@Ih*4lt9$}4T
&f_\g
-
a分之a²-ab除以(b分之a-a分之b)
a分之a²-ab除以(b分之a-a分之b)
a分之a²-ab除以(b分之a-a分之b)
a分之a²-ab除以(b分之a-a分之b)
[(a²-ab)/a]/(a/b-b/a)
=[a(a-b)/a]/(a²/ab-b²/ab)
=(a-b)/[(a²-b²)/ab]
=(a-b)/[(a+b)(a-b))/ab]
=(a-b)*[ab/(a+b)(a-b)]
=ab/(a+b)