lET F(X) = 5X^2 - 5. wHAT IS F(F(X))
To find F(F(x)), we need to substitute F(x) into the equation for F(x).
F(x) = 5x^2 - 5
So, F(F(x)) = 5(F(x))^2 - 5
Substituting F(x) into the equation:
F(F(x)) = 5(5x^2 - 5)^2 - 5
Expanding and simplifying further:
F(F(x)) = 5(25x^4 - 50x^2 + 25) - 5
F(F(x)) = 125x^4 - 250x^2 + 120