Question 413616
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Hi
two numbers give you a sum of 22
Let x and (22-x) represent the numbers
Question states***
  x(22-x) = -720
  x^2 - 22x-720 = 0
factoring
( x-40)(x+18) = 0
( x-40)= 0 
     x = 40   
 (x+18) = 0
     x = -18   Numbers are -18 and 40