Question 548459
There's nothing we can do with {{{root(3,75)-sqrt(3)}}}.
However, if the two roots were square roots (not cube root of 75),
{{{sqrt(75)-sqrt(3)=sqrt(25*3)-sqrt(3)=sqrt(25)*sqrt(3)-sqrt(3)=5*sqrt(3)-sqrt(3)=(5-1)sqrt(3)=4sqrt(3)}}}