[tex]\bf (f\circ g)(x)\implies f(~~g(x)~~)\implies h(x)\implies (9x+6)^8\\\\
-------------------------------\\\\
\textit{a combination off several could just be}\quad
\begin{cases}
f(x)=x^8\\
g(x)=9x+6
\end{cases}
\\\\\\
f(~~g(x)~~)=[g(x)]^8\implies f(~~g(x)~~)=(9x+6)^8\impliedby h(x)[/tex]
