 ##  [Multinomial Theorem](/multinomial-theorem) 

  ##  [Multinomial Theorem](https://algebra.quantumdictionary.io/multinomial-theorem-0) 

  

 [![Algebra](/sites/default/files/styles/large/public/2026-01/Algebra.png.webp?itok=3pHxBnUF)](/topic-specific-dictionaries/pure-mathematics/algebra)

- Pure Mathematics -

**Algebra Dictionary**

 







 

 

 

 



 

 

 

 

Definition

The generalization of the binomial theorem that expands (x1 + x2 + ... + xm)^n as a sum over all m-tuples of nonnegative integers (k1,...,km) with sum n, with coefficients given by the multinomial coefficients n!/(k1!...km!).