问题
解答题
计算: (1)(2
(2)(5+
|
答案
(1)原式=(4
-3
)×26
,3
=4
×23
-3
×26
,3
=24-6
;3
(2)原式=25
-102
+53
-212
,18
=25
-102
+103
-63
,2
=19
.2
计算: (1)(2
(2)(5+
|
(1)原式=(4
-3
)×26
,3
=4
×23
-3
×26
,3
=24-6
;3
(2)原式=25
-102
+53
-212
,18
=25
-102
+103
-63
,2
=19
.2