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anonymous
 one year ago
someone please help medal award!
Given f(x)=x^23 and g(x)=x+2, find the following (write in general form).
a) f(g(x))
b) g(f(x))
c. f(f(x))
d. evaluate f(g(5))
anonymous
 one year ago
someone please help medal award! Given f(x)=x^23 and g(x)=x+2, find the following (write in general form). a) f(g(x)) b) g(f(x)) c. f(f(x)) d. evaluate f(g(5))

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Okay so first things first. Put g(x) inside the f(x) equation.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0would I have to multiply x^23 by x+2? for a?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0you replace the x from f(x) with the equation of g(x)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh i see I got x^2+4x+1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You do basically the opposite for B) You use the g(x) equation and replace the x with the f(x) equation

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0but how would you set it up since theres a 3 and a 2?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You replace X with (X^2 3) +2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0+2 is from g(x) = x "+2"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and for f I believe it's set up as (x^23)3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0the X^21 I got for problem b I simplified it, and I set up (x^23)+2 for problem c

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and for f I set it up as g(5)=(5+2)^23

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Yes for B that is correct, But for c) you use f(f(x)). You do not use g(x) in the question.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so for c it would be (x^23)(x^23)?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0\[f(f(x)) = (x^2  3)^23\]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and c factors out to x^46x^2+6 :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks so much :) for d I got 6 I wasn't sure if I set it up correctly I set it up as (5+2)^23

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0That's what I got too, and np! :)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks so much for all your help :D
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