Question

For f(x) = 4x+1 and g(x) = x^2-5 find (f+g)(x)

Answer 1

x^2 +4x -4

Explanation:

f(x) = 4x+1

g(x) = x^2-5

(f+g)(x) = 4x+1 + x^2 -5

Combine like terms

= x^2 +4x +1-5

=x^2 +4x -4

Answer 2

Explanation:

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

= 4x + 1 + x² - 5

= x² + 4x - 4