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Binomial Expansion Calculator
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Expanded Form
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Sum of Coefficients
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Value of (a+b)^n
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How This Works
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The Binomial Theorem states that for any non-negative integer $n$:
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$(a + b)^n = \\sum_{k=0}^{n} \\binom{n}{k} a^{n-k} b^{k}$
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Where $\\binom{n}{k} = \\frac{n!}{k!(n-k)!}$ is the binomial coefficient.
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