Question 208583
y=5/(b+5) -2/b,,,,use  LCD b(b+5)
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{5(b)-2(b+5)}/{ b(b+5)}
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{ 5b -2b -10}/{b (b+5)}
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{3b-10} / { b(b+5)} = (3b-10)/(b^2 +5b)
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DOMAIN  is  all  REAL  NUMBERS  except,,x=0,,x=-5,,,,,,when  den  =0
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