Question

what is (f+g)(x)? f(x) = x2 – 4 and g(x) = x – 2

Answer 1

pretty sure it's based on this identity \[(f+g)(x) = f(x)+g(x)\]

Answer 2

so is it x^2-2+x?

Answer 3

Hey, what do you think we do first?

Answer 4

x^2+6+x thats the answer i got but idk if its right

Answer 5

I think you would add the functions

Answer 6

Well the directions say, "What is F + G"
So (x) Is the number we have to plug in. But all we do is plug in G for F so we have
x(x-2)^2-4

Answer 7

So we follow, PEMDAS
What would we do first?

Answer 8

Sorry not x(x-2)
its x-2^2-4

Answer 9

so i got the first try right?

Answer 10

but doesnt 2 negatives make a possitive?

Answer 11

\[(f+g)(x) \ne (f\circ g)(x)\]

Answer 12

@JAGR2713 doesn't that mean f(g(x)) ?