Use synthetic division to find the result when 3x^{4}-19x^{3}+18x^{2}+14x-203x 4 −19x 3 +18x 2 +14x−20 is divided by x-5x−5. If there is a remainder, express the result in the form q(x)+\frac{r(x)}{b(x)}q(x)+ b(x) r(x) ​ .