# Binomial Theorem Expansion Calculator

An easy to use calculator that calculates the coefficients in a binomial expansion of the form.

$$(a x + b y)^n = \sum_{k=0}^{n} {n\choose k} (a x)^{n-k} (a y)^k$$

## Use Calculator to Expand Binomials

Enter coefficients $a$ and $b$ as integers, decimals or fractions of the form p/q as shown in the example below . Enter the exponent $n$ as a positive integer gretaer than 1 and press "Expand".

 a = 2 b = -3 n = 3

### More References and links

Binomial Coefficients Calculator
Maths Calculators and Solvers