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

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

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

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

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

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

bluebrandon Group TitleBest ResponseYou've already chosen the best response.0
for 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)
 2 years ago

jiteshmeghwal9 Group TitleBest 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.
 2 years ago

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

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

nubeer Group TitleBest ResponseYou've already chosen the best response.0
how u got 8x8?
 2 years ago

coolaidd Group TitleBest ResponseYou've already chosen the best response.0
2x times +4 and2 times +4
 2 years ago

nubeer Group TitleBest ResponseYou've already chosen the best response.0
noooo... (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
 2 years ago

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

nubeer Group TitleBest 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)
 2 years ago
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