Question

F(x) = 3x – 10
g(x) = x2 + 4x + 5
Find: g(f(x))

Answer 1

g(f(x))=g(3x – 10)=(3x – 10)² + 4(3x – 10)+ 5=9x²-60x+100+12x-40+5=9x²-48x+55