EntityQ3077653· pop 7· linked from 7 articlesTrinomial expansionSign in to saveformula in mathematicsConnectionsbinomial theoremEntitymultinomial theoremEntitymathematicsEntityInternational Standard Book NumberEntitydigital object identifierEntityPascal's triangleEntitytriangular numberEntitymonomialEntityternary plotEntityPascal's pyramidEntityUndergraduate Texts in MathematicsEntitytrinomial triangleEntityCategoriesFactorial and binomial topics