If f(x)=x+4 and g(x)=x^2-1, what is g(f(x))?

asked Jun 19, 2020 21.4k views

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3 votes

Answer:

C. (g°f)(x)=x²+8x+15

Explanation:

edge 2021

Coffeemug answered Jun 21, 2020

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g(f(x)) means plug in f(x) for every "x" in g(x).

g(f(x))=(x+4)^2-1=x^2+8x+16-1=x^2+8x+15

answer: x^2+8x+15

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