1. 

   math_celebrity Administrator Staff Member

   (4 - a)/(a^2 - 16)
   
   (4 - a)/(a + 4)(a - 4)
   -1(a - 4)/(a + 4)(a - 4)
   
   Cancel a- 4 terms
   -1/(a + 4)
   
   

    

   math_celebrity, Dec 10, 2023

   #1
   
   

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