Verified Answer :

1Jr

Answer is x^2 + 3x - 5

As, f(x) = 3x + 1
And g(x) = x^2 - 6
We have to find (f+g)(x)
For that we should know
(f+g)(x) = f(x) + g(x)
So it will become
= (3x + 1) + (x^2 - 6)
= 3x + 1 + x^2 - 6
= x^2 + 3x - 5

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