问题
解答题
计算题 (1)
(2)
|
答案
(1)原式=
•(a+2)(a-2) (a+4)(a-2)
•1 (a+2)(a-2)
=(a-2)2 a-2
;1 a+4
(2)原式=
×(x+1)(x-1) (x-2)2
×1 x+1
=(x-1)(x-2) x-1
.x-1 x-2
计算题 (1)
(2)
|
(1)原式=
•(a+2)(a-2) (a+4)(a-2)
•1 (a+2)(a-2)
=(a-2)2 a-2
;1 a+4
(2)原式=
×(x+1)(x-1) (x-2)2
×1 x+1
=(x-1)(x-2) x-1
.x-1 x-2