Question

Find (f+g)(x)
(f-g)(x)
(fg)(x)
(f/g)(x)
what is the domain of f/g?

1.) f(x)=x^2+3x+2
g(x)=x

Answer 1

f+g means u add both eq and since u were laughing with Neillene's q i guess u know how to add them :)

Answer 2

f/g(x) = x + 3 + 2/x so the domain is where this function is defined
It has a singularity at x=0 so the domain is all real numbers except x=0

Answer 3

(f+g)(x) = x^2+4x+2
(f-g)(x) = x^2+2x+2
(fg)(x) = x^3+3x+2x

Answer 4

(fg)(x) = x^3+3x^2+2x

Answer 5

thank you so much guys! especially angela210793.. ;D