Question

Let f(x)= x-3 and g(x)= 2x+5. What is h(x) if f(h(x))= √x?

Answer 1

Alright~
f(x)=x-3 therefore, f(h(x)) can also be expressed as

(h(x))-3 = \[\sqrt{x}\]
Then solve h(x)= √x +3

Answer 2

\[f(h(x)) = h(x) -3 = \sqrt{x} \Rightarrow h(x) = \sqrt{x} +3\]