A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing

This Question is Closed

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0Just subtract for finding (f  g) and add for finding (f + g).

tjones89
 2 years ago
Best ResponseYou've already chosen the best response.0(fg)(x) = f(x)  g(x)

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0\[\rm (f  g)(x) = (2x  2)(x + 4)\]\[\rm (f + g)(x) = (2x + 2) + (x + 4)\]

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0Oh, then it gets a little difficult... you have to plug g(x) into f(x).

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0For example, if you got \(\rm f(x) = x^2\) and \(\rm g(x) = x+1\), then\[\rm f(g(x)) = f(x + 1) = (x + 1)^2\]

coolaidd
 2 years ago
Best ResponseYou've already chosen the best response.0soo what would this be?

bluebrandon
 2 years ago
Best ResponseYou've already chosen the best response.0for f(g(x)) just replace all the x in 2x2 with (x+4) and for g(f(x)) just replace all the x in x+4 with (2x2)

jiteshmeghwal9
 2 years ago
Best ResponseYou've already chosen the best response.0\(x(fg)\)=\(f(x)g(x)\) now put the values of \(f(x)\) & \(g(x)\) & solve them.

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.0yup.. thats how its done.

coolaidd
 2 years ago
Best ResponseYou've already chosen the best response.0so would it then be 2x+82 8x8?

coolaidd
 2 years ago
Best ResponseYou've already chosen the best response.02x times +4 and2 times +4

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.0noooo... (2x2) +4 u have to just open the bracket.. if there is a positive or negative sign outside the bracket that means its addint or subtracting not multiplying. your expression will be like 2x2 +4

coolaidd
 2 years ago
Best ResponseYou've already chosen the best response.0so it would just be 2x2 +4? i dont have to solve it?

nubeer
 2 years ago
Best ResponseYou've already chosen the best response.0(2x2)4 if it was written liek this then u had to multiplied.. and yes that would be your answer just simplify it 2x+2 would be your answer for gf(x)
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.