The value of the expression for (f + g)(x) is 5x−4
To find the sum of two functions
f(x) and g(x), denoted as (f+g)(x),
By adding their respective expressions:
(f + g)(x)=f(x) + g(x)
Given that f(x)=2x - 9 and
g(x) = 3x + 5, you can find
(f+g)(x) by adding their expression
(f+g)(x) = (2x−9) + (3x+5)
Combine like terms:
(f+g)(x)=2x+3x−9+5
Combine x terms and constants:
(f+g)(x)=5x−4
So, the expression for (f+g)(x) is 5x−4