Answer:
(f + g)(x) = x² + 2x - 6
Step-by-step explanation:
We have (f + g)(x) = f(x) + g(x)
f(x) = 2x + 1 and g(x) = x² - 7
Substituting
(f + g)(x) = f(x) + g(x) = 2x + 1 + x² - 7 = x² + 2x +1 -7
(f + g)(x) = x² + 2x - 6
So we have
(f + g)(x) = x² + 2x - 6
