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    4. simplify (18)(-18)+30(-16)=
    simplify (18)(-18)+30(-16)=

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    0  Views: 396 Answers: 1 Posted: 14 years ago
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      1 Answer

      Multiplying ( + )positive and ( - )negative numbers:


         ( +) * ( - ) = ( - )     ( + ) * ( + ) = ( + )     ( - ) * ( - ) = ( + )


      (18)(-18) + 30(-16) = ?


              ?        +       ?      = ?


       

      14 years ago. Rating: 0
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