Question

For f(x) = 2x + 1 and g(x) = x² - 7, find (f+ g)(x).

Answer 1

(f + g)(x) = x² + 2x - 6

Explanation:

(f + g)(x)

= f(x) + g(x)

= 2x + 1 + x² - 7 ← collect like terms

= x² + 2x - 6 ← in standard form