问题
解答题
计算: (1)2
(2)
(3)(3-2
(4)
|
答案
(1)原式=4
+123 3
=16
;3
(2)原式=
-18 2 2
=3
-2 2 2
=
;5 2 2
(3)原式=9+8-122
=17-12
;2
(4)原式=4
-2
+3 2 2 2
=
.7 2 2
计算: (1)2
(2)
(3)(3-2
(4)
|
(1)原式=4
+123 3
=16
;3
(2)原式=
-18 2 2
=3
-2 2 2
=
;5 2 2
(3)原式=9+8-122
=17-12
;2
(4)原式=4
-2
+3 2 2 2
=
.7 2 2