| 4x2−1 | |
taki zapis? | |
| 2x3+x2 |
| x3+4x | |
= rozkładamy licznik i mianownik na iloczyny | |
| x5−16x |
| x*(x2+4) | ||
= | = | |
| x*(x4−16 |
| x*(x2+4) | ||
= | = upraszczamy przez (x2+4) | |
| (x2−4)*(x2+4) |
| x | ||
= | ||
| x2−4 |
| −1 | −1 | 1 | ||||
w(−1)= | = | = | ||||
| (−1)2−4 | −3 | 3 |
| x2−2x+1 | |
= | |
| x3−1 |
| (x−1)2 | ||
= | = | |
| (x−1)*(x2−x+1) |
| x−1 | ||
= | ||
| x2−x+1 |
| −1−1 | −2 | 2 | ||||
w(−1)= | = | =− | ||||
| (−1)2−(−1)+1) | 1+1+1 | 3 |