Answer:
To find (f + g)(x), we need to add f(x) and g(x):
f(x) = -3
g(x) = 4x² + x - 4
(f + g)(x) = f(x) + g(x)
Substituting the expressions for f(x) and g(x), we get:
(f + g)(x) = -3 + 4x² + x - 4
Simplifying the expression, we get:
(f + g)(x) = 4x² + x - 7
Therefore, (f + g)(x) = 4x² + x - 7.