问题
解答题
计算: (1)2
(2)(
(3)(2-3
|
答案
(1)原式=
-6×2
+23 3
=32
-22
;3
(2)原式=
-25
=5-2=3;4
(3)原式=(2-
)×3
=23
-33
计算: (1)2
(2)(
(3)(2-3
|
(1)原式=
-6×2
+23 3
=32
-22
;3
(2)原式=
-25
=5-2=3;4
(3)原式=(2-
)×3
=23
-33