问题
解答题
计算: (1)
|
答案
(1)原式=
+41 2
-2
-2 3 3
-52 4 3
=
+2 2
-2
-2 3 3
-52 4 3
=
+2 2
-2 2 2
-(2 4
+52 3 3
)3
=
-5 2 4
;17 3 3
(2)原式=
+(2-3
)×2 2 2
-(3-8)(
-3
)×6 3 3
=
+2
-62 2
+53-3 2 3
=
-3+1-2
+52
=3.