问题
解答题
计算：
|
答案
-(2
-13
-2)0-|-3
|+2-1+12 3
=
-1-2(
+1)3 (
)(3-1
+1) 3
+12
+1 2 3
=
-1-2(
+1)3 (
)2-123
+4×3
+1 2 3
=
+1-1-23
+3
+1 2 3
=（
-23
+3
）+（1-1）+3 1 2
=
．1 2
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