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    Binomial expansion

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    (2x + y) to the 5th power

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    Solution Preview

    In general the formula is as follow:

    (a+ b)^n= sum(k(up)=n, k(low)=0)[C(n, n-k) a^(n-k) b^(k)]

    where C(n, n-k) means n choose ...

    Solution Summary

    This uses binomial expansion to write a polynomial.