问题
解答题
计算: (1)3(
(2)(
(3)
(4)(3
|
答案
(1)原式=3
+33
-42
+122
=153
-3
;2
(2)原式=
+4 3
=2 3
;4+ 2 3
(3)原式=4
+23
+33
=93
;3
(4)原式=18-12=6.
计算: (1)3(
(2)(
(3)
(4)(3
|
(1)原式=3
+33
-42
+122
=153
-3
;2
(2)原式=
+4 3
=2 3
;4+ 2 3
(3)原式=4
+23
+33
=93
;3
(4)原式=18-12=6.