问题
解答题
计算:
|
答案
原式=
+
( 23
+3 )3 12-9
-2
( 3
+2 )3 3-4
(2分)2 (
+1 )3 3-1
=2+
-6-43
-3
-1(2分)3
=-4
-5.(2分)3
计算:
|
原式=
+
( 23
+3 )3 12-9
-2
( 3
+2 )3 3-4
(2分)2 (
+1 )3 3-1
=2+
-6-43
-3
-1(2分)3
=-4
-5.(2分)3