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Math Help - Combing fractions for integrals

  1. #1
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    Combing fractions for integrals

    Combing fractions for integrals-untitled4m.png



    I was taught a different way to do this type of problem and getting:

    A(x^2+64) +(Bx+C)(x-1) = 65

    I do not understand what they want in this question! If anyone can help, I appreciate any advice!
    Last edited by Steelers72; March 14th 2013 at 10:29 PM.
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  2. #2
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    Re: Combing fractions for integrals

    your initial decomposition is ok
    now use algebra to calculate B and C . you must find B = C = -1.

    MINOAS
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    Re: Combing fractions for integrals

    Quote Originally Posted by MINOANMAN View Post
    your initial decomposition is ok
    now use algebra to calculate B and C . you must find B = C = -1.

    MINOAS
    Thanks for the reply! They are asking to combine the fractions (which is an alternative step instead of the route I usually take). I'm not sure how they are combining the equations in this problem. It's the part on the attachment that has the red X on it
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    Re: Combing fractions for integrals

    Quote Originally Posted by Steelers72 View Post



    I was taught a different way to do this type of problem and getting:

    A(x^2+64) +(Bx+C)(x-1) = 65

    I do not understand what they want in this question! If anyone can help, I appreciate any advice!
    For this part of the problem, you're only working with the left hand side:

    A(x^2+64) +(Bx+C)(x-1)

    You multiply it out and combine the x^2, x, and constant terms, and they are asking for the constant term.

    - Hollywood
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