Question

Please do this rn I need it down quickly
f(x) = x^2- 2x- 3
g(x) = 5x^2
²
Find f (g(x)) =

Answer 1

Answer : 25x^4 - 10x^2 - 3

substitute 5x^2 for x in the equation x^2-2x-2
(5x^2)^2 - 2(5x^2) - 3

simplify
25x^4 - 10x^2 -3