Which expression represents f(g(x)) if f(x) = x^2 - 1 and g(x) = x + 3 ?

Uncle Pedro

New member
A. x^3 +3x^2 - x - 3
B. x^2 + 6x + 8
C. x^2 + x + 2
D. x^2 + 8

^ = raised to the power of

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