We can multiply out this expression so as to obtain a series of **monomials** of the form 9(sl is2 2 s3 3 ...).

An expression denoting that two or more **monomials** are to be added or subtracted is a multinomial or polynomial, each of the **monomials** being a term of it.

(iii.) The multiplication and division of **monomials** is effected by means of the law of indices.

- (i.) The results of the addition, subtraction and multiplication of multinomials (including **monomials** as a particular case) are subject to certain laws which correspond with the laws of arithmetic (ï¿½ 26 (i.)) but differ from them in relating, not to arithmetical value, but to algebraic form.