Question 193070
SR(300x^4)/SR(5x) 
All you do with this is simplify it some.
Since they're both square roots, you can divide.
{{{sqrt(300x^4)/sqrt(5x)}}}
={{{sqrt(60x^3)}}}
Then make what's inside the radical as small as possible. (I don't know why)
={{{sqrt(4x^2)*sqrt(15x)}}}
= {{{2x*sqrt(15x)}}}