Here, we want to factor by the use of synthetic division.
We divide at each point till we get the last zero
Since the highest power is 4, there should be 4 roots
So using the synthetic division, we have the following;
So, we have the initial quotient as x^3 + 6x^2 + 5x
Now, we proceed to divide this result by (x-3)
We have this as;
