Question

let f(x) = 5x - 2 and g(x) = x^2. find (g(f(x))

Answer 1

Answer: $g(f(x))=25x^2-20x+4$

Step by step:

$f(x) = 5x - 2\\g(x) = x^2\\g(f(x))=(g\circ f)(x)=(5x-2)^2=25x^2-20x+4$