Question

F(x)=x^2-6x
g(x)= √x
Evaluate f(g(25)) = ???

Answer 1

f(g(25)) = -5

Explanation:

You have to put 25 in place of x in g, and after, you take the result and put in place of x in f:

g(5) = √25 = 5

f(5) = 5^2 -6•5

f(5) = 25 -30

f(5) = -5