| x3−2x2−9x+18 | 2 | |||
Dane są wyrażenia P(x)= | i Q(x)=1− | . Zapisz iloraz P(x):Q(x) w | ||
| x2+3x | x |
| x−2 | ||
Q(x)=xx−2x= | ||
| x |
| P(x) | x3−9x−2x2+18 | x | |||
= | * | = | |||
| Q(x) | x2+3x | x−2 |
| x(x2−9)−2(x2−9) | x | |||
= | * | = | ||
| x(x+3) | x−2 |
| (x−2)(x2−9) | x | |||
= | * | |||
| x(x+3) | x−2 |
| x2−9 | (x+3)(x−3) | |||
= | = | =x−3 | ||
| x+3 | x+3 |
| x3−2x2−3x | ||
W(x)= | ||
| x6−18x4+81x2 |