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3 October, 18:10

За^n (а^n + a^n-1) what is it?

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  1. 3 October, 18:15
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    Distribute the 3a^n to all the other values then solve ...

    (3a^n*a^n) + (3a^n*a^n) + (3a^n*-1)

    4a^2n+4a^2n-3a^n=

    8a^2n-3a^n
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