SOLUTION: which of the following is a suitable common denominator for combining there two rational expressions? (2x+1/x-3) - (3x-2/x+3) a.(x-3) b.(x+3)^2 c.(x+3)(x-3)

Question 1158445: which of the following is a suitable common denominator for combining there two rational expressions?
(2x+1/x-3) - (3x-2/x+3)
a.(x-3)
b.(x+3)^2
c.(x+3)(x-3)
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
the denominator has to have BOTH denominators contained, and that is (x-3)(x+3)
x^2-9, which is their product, would also be correct but is not a choice.
Answer by MathTherapy(10551) (Show Source): You can put this solution on YOUR website!

which of the following is a suitable common denominator for combining there two rational expressions?
(2x+1/x-3) - (3x-2/x+3)
a.(x-3)
b.(x+3)^2
c.(x+3)(x-3)

I don't know where the other person is looking, but it's c. (x + 3)(x - 3)!
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