1 |
2 |
2x-1 |
2x+1 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
-2x-1 |
-2x+1 |
1 |
2 |
2x+1 |
2x-1 |
1 |
2 |
2x-1 |
2x+1 |
2x-1 |
2x+1 |
2 |
2x+1 |
x2-x1 |
(2x1+1)(2x2+1) |
1 |
2 |
x2-x1 |
(2x1+1)(2x2+1) |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
2 |
A.-2 | B.2 | C.-
| D.
|
A.-x(1-x) | B.x(1-x) | C.-x(1+x) | D.x(1+x) |
1 |
x |
A.y轴对称 | B.y=x对称 | C.x轴对称 | D.原点对称 |
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