问题
解答题
化简: (1)
(2)(
|
答案
(1)原式=
-2a (a+2)(a-2)
=1 a-2
=a-2 (a+2)(a-2)
;1 a+2
(2)原式=
×a2 b2
×25b2 4a4
=a 5b
.5 4ab
化简: (1)
(2)(
|
(1)原式=
-2a (a+2)(a-2)
=1 a-2
=a-2 (a+2)(a-2)
;1 a+2
(2)原式=
×a2 b2
×25b2 4a4
=a 5b
.5 4ab