I’m not an expert at this but I believe first you factor the equation out, so it would become 5^2/3 ( the “/“ stands for the square root sign). Then “the root of a product is equal to the product of the roots of each floor”. The equation should become like this: /5^2 /3.
You then simplify the root to 5/3
For the second one, you factor out the perfect square in 9/90 to make it become 9/3^2•10. You use the property of radicals to get 9/3^2 /10. Then you simplify it to 9•3/10 and calculate that to let it become your answer: 27/10
So sorry if this didn’t work : (