gives remainder of 0 if divided by .
Dividend is .
The setup to do as synthetic division looks like this:
This is like checking the root of 3.
3 | 1 k-3 0 0 3
|
| 3 3k 9k 27k
|________________________________________________________________
1 k 3k 9k 27k+3
The remainder of 27k+3 is 0, because we are given in the description the essential fact that 3 is a root of the given described polynomial; that x-3 is a factor of the polynomial.