| x2 + 9x +8 | ||
1) | =
| |
| 2x + 16 |
| x2 + 10x + 25 | ||
2) | =
| |
| x2 + 4x − 5 |
| x2 + 2x − 3 | ||
3) | =
| |
| x2 − 1 |
| 4x2 − 1 | ||
4) | =
| |
| 2x2 − 3x +1 |
| x3 + x | ||
5) | =
| |
| x3 − x2 + x −1 |
| 2x3 − 2x | ||
6) | =
| |
| x3 − 3x2 −x + 3 |
| x3 − x2 − 4x + 4 | ||
7) | = | |
| x2 − 5x + 4 |
| 2x(x2−1) | 2x | ||
= | |||
| (x2−1)(x−3) | x−3 |