| x3−ax | ||
dane jest wyrażenie w(x)= | ||
| x2+2x |
| 8−2a | |
=a ... i policz sobie | |
| 4+4 |
| 8 | ||
a = |  | |
| 10 |
| 8−2a | 8 | 2a | 1 | ||||
=a z wlasnosci dzialan na liczbach ℛ mamy | − | =a to 1− | a=a to | ||||
| 8 | 8 | 8 | 4 |
| −1 | 5 | 5 | 4 | |||||
a−a=−1 to − | a=−1/*(−1) | a=1 to a= 1* | to a= | |||||
| 4 | 4 | 4 | 5 |
| 8−2a | 8 | 4 | |||
=a /*(8) to 8−2a=8a to −10a=−8 /*(−1) to 10a=8 to a= | to a= | ||||
| 8 | 10 | 5 |