Question

F(x) = x+3, g(x)=x2-2x-1 (fog)(x) =

Answer 1

F(x) = x + 3    ,    g(x) = x² - 2x - 1

(fоg)(x) = f(g(x))
            = f (x² - 2x - 1)
            = (x² - 2x - 1) + 3
            = x² -2x - 1 + 3
            = x² -2x + 2