Express the function???

Express the function in the form f o g o h. (Use only elementary functions, but not the identity function, g(x) = x.)


H(x) = 8 - 3^[x^2]





a) f(x) b) g(x) c) h(x)

Express the function???
1 hour....h(x) = x^2, g(t) = 3 t, f(y) = 8 - y...then H(x) = f(g(h(x)))...it is not so hard...and there are other functions to get the same H(x)