compostition of functions $f(x)=12(8x+3)$
$h(x)=(3x+19)−5$
Solve when $x=8$
I really need step by step directions to solve $f(h(x))$.
Also can someone solve $h(f(x))$.
I really need help this is so confusing. I am able to do the simpler ones but not a question ever this challenging.

$$f(h(x))=f((3x+19)-5)$$
$$=f(3x+14)=12[8(3x+14)+3]$$
$$=12[8\times3x+8\times14+3]=12(24x+112+3)$$
$$=12(24x+115)=12\times24x+12\times115$$
$$=288x+1380.$$
So
$$f(h(8))=288\times 8+1380$$
$$=2684.$$
