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Math Help - help me please

  1. #1
    Newbie
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    Jan 2007
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    help me please

    given: f(x) = x squared + 2 and g(x) = [x + 5]...find f(g(pi -5))

    please explain how to do this. thanks
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  2. #2
    Senior Member
    Joined
    Apr 2006
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    Quote Originally Posted by ilovemath15 View Post
    given: f(x) = x squared + 2 and g(x) = [x + 5]...find f(g(pi -5))

    please explain how to do this. thanks
    f(x) = x^2 + 2

    g(x) = x + 5

    f(g(x)) = f(x + 5)

    f(g(x)) = (x + 5)^2 + 2

    f(g(x)) = x^2 + 10x + 27

    (Pi - 5)^2 + 10*(Pi - 5) + 27

    = Pi^2 + 2
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