Hi,

Let x and (x + 5) represent the numbers

x^2 - (x+5)^2 = 165

x^2 - x^2 -10x - 25  = 165

  -10x - 25 = 165

     10x = -190

       x = -19    Numbers -19, -14

CHECKING our Answer***

 = 165

 

  

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