问题
解答题
把下列各式约分: (1)
(2)
(3)
|
答案
(1)原式=
;2a 15b
(2)原式=
=(1-m)2 (1+m)(1-m)
;1-m 1+m
(3)原式=
=(a-b)2 (a-b)2
.1 (a-b)2
把下列各式约分: (1)
(2)
(3)
|
(1)原式=
;2a 15b
(2)原式=
=(1-m)2 (1+m)(1-m)
;1-m 1+m
(3)原式=
=(a-b)2 (a-b)2
.1 (a-b)2