SOLUTION: My problem is this let f(X)=5/b+5 - 2/b find the domain and simplify I tried to write understandably

Question 208583: My problem is this let f(X)=5/b+5 - 2/b find the domain and simplify

I tried to write understandably
Answer by RAY100(1637) (Show Source): You can put this solution on YOUR website!
y=5/(b+5) -2/b,,,,use LCD b(b+5)
.
{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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