Rationalize the denominator and simplify So the problem I have says rationalize the denominator and simplify.
$$    \frac{ \sqrt{15}}{\sqrt{10}-3}$$
My answer I got was $\frac{5 \sqrt6}{7}$.
Am I doing this wrong or is this the wrong answer I was told it was incorrect?

I think wht happened was that you correctly multiplied the denominator by $\sqrt{10}+3$, but incorrectly multiplied the numerator by $\sqrt{10}$. The numerator should also have been multiplied by $\sqrt{10}+3$
