Question

f(x) = x2 − 13 and g(x) = x + 5. What is the value of (f − g)(−4)?

4

3

−3

2

Answer 1

[(x^2-13)-(x+5)]*-4

(x^2-13x-x-5)*-4

-4x^2+72x+4x+20

-4x^2+76x+20

Answer 2

is the answer 4?

Answer 3

oh is this an f(g(x)) problem. like f(g(-4))?

Answer 4

yes