Question

Let f(x)=x-2 and g(x)=x2-7x-9 find f(g(-1))

Answer 1

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Answer 2

g(-1) = (-1)^2 - 7(-1) - 9

= 1 + 7 - 9 = -1

f(g(-1) = (-1) - 2 = -3 (answer)