help I am having difficulty with my math I don't understand it please help me out.?

Question

please explain the the steps and show me the work, so that I may get a better understanding.

(f+g)(3)


Thanks again

I need to get the answer 24, this has to do with alternate function notation, your help is appreciated:)

Answer 1

(f + g)(3) =

3f + 3g

- - - - - - - - - - -s-

Answer 2

(f+g)(3) does NOT mean (f+g) to the 3rd exponential power. This is a simple multiplication problem and not an exponent problem.

Sorry but one of the answers using this is not correct.

The only solution from what's given is


" 3f + 3g"

Answer 3

If (f+g)(3) = (f+g)^3
you have
(f + g)(f + g)(f + g) =
(f + g)(f(f + g) + g(f + g)) =
(f + g)(f^2 + fg + fg + g^2) =
(f + g)(f^2 + 2fg + g^2) =
(f^2(f + g) + 2fg(f + g) + g^2(f + g)) =
f^3 + f^2g + 2f^2gf + 2fg^2 + fg^2f + g^3 =
f^3 + 3f^2g + 3fg^2 + g^3

If (f + g)(3) is a composite function f(x) and g(x) must be known in order to solve.

The possibility of multiplication has been covered by others.

Answer 4

(f+g)(3)=3f+3g That is the only thing I can do for this?!

Please specify what you need to do or solve for?

Regards.

Answer 5

You didn't really ask a questions, if you are asking how to foil it it is (3f + 3g).

Answer 6

(f+g) (3) = 3 * (f+g) = 3f + 3g!!

thats all?

Answer 7

if you are factorising,

(f+g)(3)

means

(f+g)x3

which is (fx3)+(gx3)

so therefore, it is 3f+3g