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Math Help - f(x) -g(x)

  1. #1
    Junior Member
    Joined
    Aug 2008
    Posts
    60

    Wink f(x) -g(x)

    Find g - f if f(x) = x + 1 and g(x) = 2x2

    My answer was 2x^2 - x +1 and it was wrong. I dont understand why dudes.
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  2. #2
    Junior Member
    Joined
    Jul 2008
    Posts
    46
    It should be a negative 1 at the as well mate. This should give you the right answer.
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  3. #3
    Newbie
    Joined
    Oct 2008
    Posts
    7
    Right, parenthesis are helpful here.

    you end up with a (2x^2)-(x+1), distribute the negative.
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