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Math Help - I need help to understand this algebraic fraction problem

  1. #1
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    I need help to understand this algebraic fraction problem

    Hello the problem is stated on the uploaded paper

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  2. #2
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    e^(i*pi)'s Avatar
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    The key is recognising that the numerator is a perfect square:

    x^4+2x^2+1 = (x^2+1)^2


    note that 4x^2 + (x^4-2x^2+1) = x^4+2x^2+1
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  3. #3
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    Ah thanks I get stuck at basic things although I am studying at uni <(-_-)>
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    e^(i*pi)'s Avatar
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    Quote Originally Posted by Riazy View Post
    Ah thanks I get stuck at basic things although I am studying at uni <(-_-)>
    It's often the way, one forgets the basics when working on harder maths
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