Step 1:
The Binomial Theorem states that for any positive integer $n$, the expansion of the binomial expression $(a+b)^n$ is given by:
$$(a+b)^n = a^n + \binom{n}{1}a^{n-1}b + \binom{n}{2}a^{n-2}b^2 + \ldots + \binom{n}{n}b^n$$
where $\binom{n}{r}$ is the binomial
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