Answer:
x² + 2x + 9 - [tex]\frac{7}{x+3}[/tex]
Step-by-step explanation:
Using Synthetic division
- 3 | 1 5 15 20
↓ - 3 - 6 - 27
----------------------------
1 2 9 - 7 ← remainder r(x)
Quotient Q(x) = x² + 2x + 9
Thus
x³ + 5x² + 5x + 20 = x² + 2x +9 - [tex]\frac{7}{x+3}[/tex]
