Question

what is f(g(x)) if f(x)=x^3+1 and g(x)=5x+2

Answer 1

\(\bf f(x)=x^3+1 \qquad {\color{red}{ g(x)}}=5x+2
\\ \quad \\
f(\quad g(x)\quad )=({\color{red}{ 5x+2}})^3+1\)