Question

If f(x) = -x2 – 1, and
g(x) = x + 5, then
g(f(x)) = [ ? ]x2+[ ]x+[]

Answer 1

x^²-x+6

Explanation:

Just add

Answer 2

-x^2 +4

Explanation:

f(x) = -x^2 – 1, and

g(x) = x + 5,

g(f(x)) = Plug f(x) in for x in g(x)

=-x^2-1 +5

=-x^2 +4