Answer: x^2+4x+3
Explanation:
f(g(x)) >>> replace the g(x) with the given information
f(x+2) >>> replace every (x) in the given f(x) with (x+2)
(x+2)^2-1 >>> foil it out
x^2+4x+4-1 >>> simplify
x^2+4x+3 >>> ANSWER!! :)
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