Page 64 - Math Course 2 (Book 1)
P. 64

The Distributive Property




        Distribute Over Addition or Subtraction
         Use the Distributive Property to f nd 6 • 54.

         A. 300
         B. 24
         C. 324
         D. 6(50 + 4)

          Answer



         MO. 2 - L4b                                       Simplest form

                 Distributive Property:                    when it is replaced by an equivalent expression

          Simplify Algebraic Expressions                   having no like terms or parentheses.

                                                            Simplify 15x + 18x.
                     Vocabulary A-Z

                     Let us learn some vocabulary           15x + 18x = (15 + 18) x      Distributive
                                                                                         Property
                                                                              = 33x      Substitution


        Term                                               Coef  cient

        is a number, a variable, or a product or quotient of   the coef  cient of a term is the numerical factor.
        numbers and variables.
                                                                                                  3y
                                                                                                     2
                                                              in 17xy, the coef  cient is 17, and in          ,
                       Examples of term:                                                    3      4
                      y, p  , 4a, and 5 g  h                              the coef  cient is  4
                          3
                                       2


        Like Terms                                                       Let’s Begin


        contain the same variables, with corresponding
        variables having the same power.
                                                           Algebraic Expressions
                                    2
                                         2
           2x  + 6x + 5          3a  + 5a  + 2a
              2
            three terms      like terms   unlike terms
                                                            Examples


                                                             Rewrite 12(y + 3) using the Distributive Property.
        Equivalent expressions                               Then simplify.
                                                             12(y + 3) = 12 • y + 12 • 3   Distributive
        these expressions denote the same numbers.                                       Property


          The expressions 5n + 7n and 12n are called
                    equivalent expressions.                     Answer               12y + 36








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