ACT Problem 16

$$\begin{array}{lcl} 16.\; If\;f(x)=2x^{2}+6x,\;then\;f(x+2)=? \\ \\ (F)\;2x^{2}+6x+2 \\ (G)\; 2x^{2}+8x+2\\ (H)\; 2x^{2}+14x+20\\ (J)\; 2x^{2}+8x+16\\ (K)\; 2x^{2}+10x+12\\ \end{array}$$