问题 填空题
将下列分式约分:
(1)
x5
8x2
=______;
 (2)
7m2n
-35mn2
=______;
(3)
(a-b)2
(b-a)2
=______.
答案

(1)

x5
8x2
=
x3
8

(2)

7m2n
-35mn2
=-
m
5n

(3)

(a-b)2
(b-a)2
=
(a-b)2
(a-b)2
=1;

故答案为:

x3
8
,-
m
5n
,1.

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