题目内容
计算:(
-3)0+(
) -2=______.计算:
-
=______.
| 2007 |
| 1 |
| 2 |
| x2 |
| x-2 |
| 4 |
| x-2 |
(
-3)0+(
)-2=1+4=5;
-
=
=
=x+2.
故答案为5,x+2.
| 2007 |
| 1 |
| 2 |
| x2 |
| x-2 |
| 4 |
| x-2 |
| x2-4 |
| x-2 |
| (x+2)(x-2) |
| x-2 |
故答案为5,x+2.
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