ok, so im reviewing for a math test and the following question is from the practice final exam.
Rationalize the denominator in the example: $$\frac{\sqrt {2}}{\sqrt {x-3}}$$
After multiplying both the numeration and denominator by the conjugate of the denominator, I got $$\frac{\sqrt {2x+6}}{x-3}$$
But, in the answer key the answer is $$\frac{\sqrt {2x-6}}{x-3}$$
The problem looks quite simple, but I'm not sure what is the answer.