225×0.04 |
1172-1082 |
2xy |
8y |
12 |
27 |
225×0.04 |
225 |
0.04 |
1172-1082 |
(117+108)(117-108) |
225 |
9 |
2xy |
8y |
2xy |
2y |
12 |
27 |
3 |
3 |
3 |
2xy |
2y |
3 |
1-x |
x |
a-2010 |
a-20092+15 |
a-2010 |
a-2010 |
a-20092+15 |
x-4 |
4-y |
4x-1 |
A.x>
| B.x>-
| C.x≥
| D.x≥-
|
(x-2)2 |
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