Answer:
x^2 + 4x - 5
Step-by-step explanation:
(f+g)(x) basically means we add function f and g
(x^2+3x - 4) + (x-1)
x^2 + 4x - 5
This is a parabola, and like all parabolas, they have a domain of all real values
The domain would be (-∞,∞) or all real numbers
