Surd75 + 11Surd3 - Surd300=
simplified?
(i cant write the surd sign sorry)
+118724 Surd75 + 11Surd3 - Surd300=
I think you meaning is pretty clear. 
This is how it is usually written
sqrt(75) + 11sqrt(3) - sqrt(300)
\(\sqrt{75} + 11\sqrt{3} - \sqrt{300}\\ =\sqrt{25*3} + 11\sqrt{3} - \sqrt{100*3}\\ =5\sqrt{3} + 11\sqrt{3} - 10 \sqrt{3}\\ =(5+11-10)\sqrt{3} \\ =6\sqrt{3} \\\)
