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Thread: Hard Binomial Theorem Question - HELP

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    Unhappy Hard Binomial Theorem Question - HELP

    if n is a positive whole number & any value of x will work:

    (a+x)^n =3b + 6bx + 5bx^2......

    find: a, b and n

    Last edited by KingDuckX; 18 Sep 2018 at 6:53 PM.

  2. #2
    jyu
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    Re: Hard Binomial Theorem Question - HELP

    a^n=3b, na^(n-1)=6b, 0.5n(n-1)a^(n-2)=5b
    a=3, b=243, n=6
    pikachu975 likes this.

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