Answer
$Q(x)=2x+1,\quad R(x)=6$
Work Step by Step
$\left.\begin{array}{l}
3\lfloor \\ \\ \\ \end{array}\right.\begin{array}{rrrrr}
2 &-5 &3 & & \\\hline
&6 &3 & & \\\hline
2 &1 &6 & & \end{array}$
$Q(x)=2x+1,\quad R(x)=6$
