Another series expansion which occurs often in examples and applications is the binomial expansion. This is simply the expansion of the expression (a+b)ⁿ in powers of a and b. We will investigate ...Another series expansion which occurs often in examples and applications is the binomial expansion. This is simply the expansion of the expression (a+b)ⁿ in powers of a and b. We will investigate this expansion first for nonnegative integer powers n and then derive the expansion for other values of n.