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

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

ParthKohli
 3 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
 3 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
 3 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
 3 years ago
Best ResponseYou've already chosen the best response.0soo what would this be?

bluebrandon
 3 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
 3 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
 3 years ago
Best ResponseYou've already chosen the best response.0yup.. thats how its done.

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

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

nubeer
 3 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
 3 years ago
Best ResponseYou've already chosen the best response.0so it would just be 2x2 +4? i dont have to solve it?

nubeer
 3 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)
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