$\begin{array}{l}\phantom{\phantom{;}x\phantom{;}+2;}{\phantom{;}3x\phantom{;}-4\phantom{;}\phantom{;}}\\\phantom{;}x\phantom{;}+2\overline{\smash{)}\phantom{;}3x^{2}+2x\phantom{;}+8\phantom{;}\phantom{;}}\\\phantom{\phantom{;}x\phantom{;}+2;}\underline{-3x^{2}-6x\phantom{;}\phantom{-;x^n}}\\\phantom{-3x^{2}-6x\phantom{;};}-4x\phantom{;}+8\phantom{;}\phantom{;}\\\phantom{\phantom{;}x\phantom{;}+2-;x^n;}\underline{\phantom{;}4x\phantom{;}+8\phantom{;}\phantom{;}}\\\phantom{;\phantom{;}4x\phantom{;}+8\phantom{;}\phantom{;}-;x^n;}\phantom{;}16\phantom{;}\phantom{;}\\\end{array}$

$3x-4+\frac{16}{x+2}$