Question

For f(x) = 2x + 3 and g(x) = x2 – 8, find (f + g)(x).

Answer 1

x² + 2x - 5

Explanation:

(f + g)(x) = f(x) + g(x)

f(x) + g(x)

= 2x + 3 + x² - 8 ← collect like terms

= x² + 2x - 5