Question

Let f(x)= x+8 and g(x)= x^2-6x-7

Answer 1

-7

Explanation:

We have f(g(2), start from the inside and work out, so we first need g(2), which is...

g(2) = 2² -6(2) - 7

g(2) = 4 - 12 - 7

g(2) = -15

So g(2) = -15

Now find f(-15)

f(-15) = -15 + 8

f(-15) = -7

So f(g(2)) = -7