Polynomial Synthetic Division problem shown below. Solve please.

Answer:
The answer to your question is:
x³ + 7x² + 6 + 9/(x⁴ + 3x³ - 28x² + 6x - 15)
Step-by-step explanation:
Divide x⁴ + 3x³ - 28x² + 6x - 15 by x - 4
1 3 -28 6 -15 4
4 28 0 24
1 7 0 6 9
Finally
x³ + 7x² + 6 + 9 / (x⁴ + 3x³ - 28x² + 6x - 15)