题目内容
(1)计算:(
)-2-23×0.125+20040+|-1|
(2)化简:
+
-
| 1 |
| 2 |
(2)化简:
| m2 |
| 2-m |
| 3-m |
| m-2 |
| m+1 |
| 2-m |
(1)原式=4-8×0.125+1+1=4-1+2=5;
(2)原式=
=
=-m-2.
故答案为5、-m-2.
(2)原式=
| m2+m-3-m-1 |
| 2-m |
| (m+2)(m-2) |
| 2-m |
故答案为5、-m-2.
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