1. 

   math_celebrity Administrator Staff Member

   the product of 3 and the sum of m and 2n
   
   The sum of m and 2n means we add 2n to m:
   m + 2n
   
   The product of 3 means we multiply the sum m + 2n by 3:
   3(m + 2n)

    

   math_celebrity, Aug 19, 2019

   #1
   
   

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