GRE数学考点：Monomials

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　　Monomials

　　An expression with only one term is called monomial.

　　Example:

　　3x,2x2,and 4xy are all monomials.

　　2x+1,x+y,3(x+1),and x+x2 are not monomials.

　　Remember:

　　There is no addition or subtraction in monomials.

　　Mono means one, as in monologue.