Question 395316
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Hi
Note:  x^2-4 = (x-2)(x+2)
1/x-2 + 5/x+2 = 7x/x^2-4 |Multiplying thru by (x-2)(x+2)so as all denominators=1
 (x+2) + 5(x-2) = 7x
  6x - 8 = 7x
       -8 = x

CHECKING our Answer
 -1/10 -5/6 = -6/60 - 50/60 =  -56/60