college algebra
posted by confused .
find functions f anf g so that fog equals H
H(x)=ãx^2+17
please show work

college algebra 
Steve
if h(x) = √(x^2+17)
f(x) = √x
g(x) = x^2+17
f◦g = f(g(x)) = √g(x) = √(x^2+17) = h(x)
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