SOLUTION: For each rational expression, find the domain: A. f(x)= (−7)/(3x−18) B. f(x)= (5x+10)/(x^2−7x+10)

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: For each rational expression, find the domain: A. f(x)= (−7)/(3x−18) B. f(x)= (5x+10)/(x^2−7x+10)       Log On


   

Question 1130311: For each rational expression, find the domain:
A. f(x)= (−7)/(3x−18) B. f(x)= (5x+10)/(x^2−7x+10)
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
domain is everything that doesn't make the denominator 0
For the first, it is (-oo, 6) U (6, oo)
The second factors into (x-5)(x-2), so 5 and 2 are not in the domain.
(-oo, 2)U(2, 5) U( 5, oo)