Question

f(x)=x - 1 and ​g(x)=x^2−x. Find and simplify the expression.
​(f+​g)(3​)

Answer 1

Answer:

8

Step-by-step explanation:

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

           = x - 1 + x^2 - x

           = x^2 - 1

(f+g)(3) = (f)(3)+g(3)

           = 2 + 6

           = 8