Question

s f(x) = x3 + 3 e g(x) = 10x, determine f(g(x)) e g(f(x)).​

Answer 1

$\Large\boxed{\begin{array}{l}\sf f(x)=x^3+3~~g(x)=10x\\\sf f(g(x))=g(x)^3+3\\\sf f(g(x))=(10x)^3+3\\\sf f(g(x))=1000x^3+3\\\sf g(f(x))=10f(x)\\\sf g(f(x))=10\cdot(x^3+3)\\\sf g(f(x))=10x^3+30\end{array}}$