Question

Expressing the given functions

Answer 1

$\bf \begin{cases} f(x)=x^2\\ g(x)=7x-5 \end{cases} \qquad (f\circ g)(x)\iff f(\ g(x)\ ) \\\\\\ f(\ g(x)\ )=[g(x)]^2\implies f(\ g(x)\ )=(7x-5)^2\impliedby h(x)$