问题
解答题
计算: (1)
(2)(
|
答案
(1)
-(-2013)0+(12
)-1+|1 2
-1|3
=2
-1+3
+1 1 2
-13
=2
-1+2+3
-13
=3
;3
(2)(
+1)(2
-1)+(2
-2)23
=2-1+3+2-43
=6-4
.3
计算: (1)
(2)(
|
(1)
-(-2013)0+(12
)-1+|1 2
-1|3
=2
-1+3
+1 1 2
-13
=2
-1+2+3
-13
=3
;3
(2)(
+1)(2
-1)+(2
-2)23
=2-1+3+2-43
=6-4
.3