avinacynthia92 avinacynthia92 03-05-2024 Mathematics Answered f (x) = - 5x g(x) =8x^2 - 5x - 9 Find (f • g)(x). A: -40x^4 +25x^3 + 45x^2 B: -40x^2 + 25x+ 45x C: -40x^3 +25x^2 + 45x D: -40x^3 - 5x - 9