x4+2x2-1 |
x5 |
1±
| ||
2×1 |
1+
| ||
2 |
1-
| ||
2 |
x4+2x2-1 |
x5 |
3x+2+2x+2-1 |
5x+3 |
5x+3 |
5x+3 |
x-1 |
x+2 |
x2-4 |
x2-2x+1 |
1 |
x2-1 |
a2-4 |
a2-4a+4 |
5 |
a-2 |
2 |
a2-2a |
x2-1 |
x2-2x+1 |
x+1 |
x-1 |
1 |
1+x |
2 |
2a+6 |
a2-4a+4 |
a-2 |
a+3 |
1 |
a-2 |
1 |
1×3 |
1 |
2×4 |
1 |
3×5 |
1 |
98×100 |
1 |
99×101 |
A.1 | B.2 | C.3 | D.4 |
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