Question

Given that f(x) = x²-3x - 15 and g(x) = x - 8, find f (g(x)).

Answer 1

f(g(x))

f(x-8)

(x-8)²-3(x-8)-15

x²+8²-16x-3x+24-15

x²+64-16x+9

x²-16x+73