radical 50x^3 + 3radical 8x^3?

Question

how do you simplify a problem like this in math? ive spent 20 minutes on it & i still have 9 more problems to go so i need help. theres also a quiz tomorrow so im screwed ='[

Answer 1

Note that rad50=rad(25*2)=
rad25*rad2= 5rad2
Use the same sort of logic on the other term, you'll see it works out nicely.