nasriinmssdoctor nasriinmssdoctor 13-11-2022 Mathematics Answered 12. f(x) = -3x² + 9 and g(x) = 4x + 1 a. flg(x)] = 16x² + 8x + 1 b. f[g(x)] = 48x² + 24x c. flg(x)] d.. f[g(x)] = = -48x² -48x² - 24x + 6 - 24x - 6