7 |
1 |
2 |
7 |
7 |
3 |
2 |
7 |
2 |
7 |
8 |
2 |
7 |
8 |
-(
|
1 |
5 |
1 |
2 |
3 |
5 |
1 |
2 |
3 |
25 |
1 |
2 |
6 | 42 |
8 |
6 | 2 |
6 |
15 |
3 |
|
2 |
3 |
1 | ||
|
(-3)2+(
|
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
7 |
2 |
7 |
8 |
2 |
7 |
8 |
2 |
7 |
8 |
2 |
7 |
8 |
2 |
7 |
4 |
2 |
-3+19 |
16 |
|
|
|
|
1 |
5 |
2 |
6 |
1 |
2 |
1 |
6 |
2 |
3 |
1 |
2 |
1 |
6 |
2 |
3 |
1 |
2 |
1 |
6 |
6×3 |
15×3 |
2 |
2 |
5 |
2 |
5 |
2 |
3 |
2 |
9+7 |
3 |
1 |
2 |
1 |
2 |
3 |
2 |
3 |
2 |
3
| ||
2
|
3
| ||
2
|
A.4个 | B.3个 | C.2个 | D.1个 |
A.(-22)3=26 | B.(-x4)5=x20 |
C.(-x2m+1)2=x4m+2 | D.[(x+y)2]7=(x+y)9 |
1 |
3 |
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