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Math Help - factorise

  1. #1
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    factorise

    x^5+x^3+x

    I am not sure how to factorise the above equation as its constant term is 0 .
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  2. #2
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    Quote Originally Posted by mathaddict View Post
    x^5+x^3+x

    I am not sure how to factorise the above equation as its constant term is 0 .
    =x(x^4+x^2+1)
    Now its constant term is 1

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

    can you finish it ?
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