Let (fx)=2x+1 and g(x)=3x^2. How do I determine simplified formula for (f+g)(x)

Answer 1

Hi Ellen,

In order to answer this question, we need to know operations of functions, specifically: (f + g)(x) = f (x) + g(x).

Given: Find:

f(x)= 2x+1 (f + g)(x)

g(x)= 3x^2

Since we already know what f(x) and g(x) are, we simply need to add them together to find (f + g)(x):

f (x) + g(x) = 2x+1 + 3x^2

Rearranging to put into standard form, we get:

f (x) + g(x) = 3x^2 + 2x+1

(f + g)(x) = 3x^2 + 2x+1

Hope that helps!