题目内容
填空:-22=______,(-2)2=______,(-2)-2=______,(-2)-1=______,(x3y-2)2=______,(
)-2=______.
| b |
| a |
-22=-4,
(-2)2=4,
(-2)-2=
,
(-2)-1=-
,
(x3y-2)2=
,
(
)-2=
.
故答案为:-4;4;
;-
;
;
.
(-2)2=4,
(-2)-2=
| 1 |
| 4 |
(-2)-1=-
| 1 |
| 2 |
(x3y-2)2=
| x6 |
| y4 |
(
| b |
| a |
| a2 |
| b2 |
故答案为:-4;4;
| 1 |
| 4 |
| 1 |
| 2 |
| x6 |
| y4 |
| a2 |
| b2 |
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