1 |
4 |
1 |
4 |
1 |
4 |
1 |
4 |
1 |
4 |
1 |
4 |
532 |
4 |
200320022 |
200320012+200320032-2 |
1 |
2 |
1 |
4 |
1 |
2 |
A.81a4+
| B.81a4-
| ||||||||
C.81a4-
| D.81a4+
|
A.(x+2y)(2x-y) | B.(x+y)(x-2y) | C.(x+2y)(2y-x) | D.(x-2y)(2y-x) |
A.(-2y-1)(-2y+1) | B.(2y-1)2 | C.(4y-1)2 | D.(2y+1)(-2y+1) |
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