An algebra problem by Júlian Rikki Réyes
Algebra
Level
2
If f is a function such that f(f(x)) = x^2 – 1, what is f(f(f(f(3))))?
The answer is 63.
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1 solution
Given: f(f(x)) = x^2 - 1 Find: f(f(f(f(3)))) f(f(3)) = 3^2 - 1 = 9-1 = 8 f(f(8)) = 8^2 - 1 = 64 - 1 = 63