Question

rationalize the denominator under root 2 over under root 2 + under root 3 minus under root 5

Answer 1

You have to just multiplied the denominator by the same numbers as in the denominator

Answer 2

You need to group the denominator. In that case you will have to rationalize it twice. your answer is 2$\sqrt{3}$ + 3$\sqrt{2}$ + $\sqrt{30}$
If you wish you can put values also