Simplify the rational expression.

Does simplify to ?Explain why or why not.

No, it does not. x and x + 6 are both prime and cannot be factored. There are no common factors to divide out. x over x + 6 is already simplified. If you substitute in a value for x, the fraction will not be equal to .
A rational expression simplifies to The denominator of the original expression is given. Which polynomial is the numerator?

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