Question

F(x) = 2x + 4 g(x) = x – 7 h(x) = 9 – x Find f(g(x))=

Answer 1

Answer:   $2x^{2} - 10x -28$

Step-by-step explanation:

We know that f(x) = 2x +4     and g(x) = x -7    so to find f(g(x)) multiply them.

(2x + 4)(x-7)      Apply the distributive property twice

2x(x-7)

2x^2 - 14x  

4(x-7)  = 4x - 28  

2x^2 - 14x + 4x -28

2x^2 -10x - 28