It's a number placed before & multiplying another quantity, such as 5 in the expression 5x
Given an expression such as , where the number under the 
square root sign is... [DOC] [TLE] GRE Math Review 2 Algebra.doc [PAR] In the expression w cubed z, +, 5, z squared, minus z squared, +, 6, ... To multiply 
two algebraic expressions, each term of the first expression is .....