Answer:
3^2
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
(a^b)/(a^c) = a^(b-c)
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70
If g(x) =x^2 -1, then
f[g(5)] = 3*(5^2-1) -2 =72-2= 70