| 3 |
| 1 |
| 2 |
| 3 |
| x+2 |
| x2-2x |
| x-1 |
| x2-4x+4 |
| x2-16 |
| x2+4x |
| 2 |
| 3 |
| 3 |
| 1 |
| 2 |
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |
| 3 |
| x+2 |
| x2-2x |
| x-1 |
| x2-4x+4 |
| x2-16 |
| x2+4x |
| x+2 |
| x(x-2) |
| x-1 |
| (x-2)2 |
| (x+4)(x-4) |
| x(x+4) |
| (x+2)(x-2)-x(x-1) |
| x(x-2)2 |
| x |
| x-4 |
| x-4 |
| x(x-2)2 |
| x |
| x-4 |
| 1 |
| (x-2)2 |
| 2 |
| 1 |
| 2 |
| 3 |
| 10 |
| 1 |
| 3 |
| 8 |
| 10 |
| 4 |
| 5 |
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