Question

If f(x)=-4x+2 and g(x)=√x-8. find (fog)(12)

Answer 1

Given;

`f(x)=-4x+2,g(x)=√(x-8)`
`\begin{gathered} (f\circ g)(x)=f(√(x-8)) \\ \\ f(√(x-8))=-4(√(x-8))+2 \end{gathered}`