Question

If h(x)=(fog)(x) and h(x)=3(x+2)^2, find f(x) and g(x).

Answer 1

one of f(x) and g(x) must be knowed, right ?

Answer 2

yes

Answer 3

so, why didnt you write it ?

Answer 4

ohh, by using trial error one by one ...

Answer 5

yea -.- i couldnt seem to get it

Answer 6

if f(x) = x+2 and g(x) = 3x^2 then (fog)(x) = f(g(x)) = f(3x^2) = 3x^2 + 2, so it is wrong because we hope get (fog) = 3(x+2)^2

Answer 7

can you check for the 3rd one :)

Answer 8

or maybe the last one be true ?

Answer 9

mkay hold on

Answer 10

sorry, i have to now. i sure @wio can help you :)
byyeeee

Answer 11

* go