# Let f(x) = x + 8 and g(x) = x2 − 6x − 7. Find f(g(2))

Let $f\left(x\right)=x+8$ and $g\left(x\right)=x2-6x-7$.
Find f(g(2))
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Margot Mill
$g\left(x\right)=-4x-7$
$g\left(2\right)=-4\left(2\right)-7=-8-7=-15$,
$f\left(x\right)=x+8$, substitute the value g(2) in f(x) therefore $f\left(g\left(2\right)\right)=-15+8$
$f\left(g\left(2\right)\right)=-7$