Odpowiedź:
W( - 2) = 8
W( - 1) = - 4
P( x ) = x² +3 x + 2 = ( x +1)*( x + 2)
więc
W( x) = Q ( x)*( x + 1)*(x + 2) + a x + b
oraz
W ( - 2) = - 2 a + b = 8
W ( - 1) = - a + b = - 4
----------------------------------- odejmujemy stronami
- a = 12
a = - 12
b = - 4 + a = - 4 - 12 = - 16
Odp. R ( x ) = - 12 x - 16
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Verified answer
Odpowiedź:
W( - 2) = 8
W( - 1) = - 4
P( x ) = x² +3 x + 2 = ( x +1)*( x + 2)
więc
W( x) = Q ( x)*( x + 1)*(x + 2) + a x + b
oraz
W ( - 2) = - 2 a + b = 8
W ( - 1) = - a + b = - 4
----------------------------------- odejmujemy stronami
- a = 12
a = - 12
b = - 4 + a = - 4 - 12 = - 16
Odp. R ( x ) = - 12 x - 16
=======================
Szczegółowe wyjaśnienie: