I will mark brainliest!!!! help me please

Answer:
4n√(3n) +3√n -√(3n)
Step-by-step explanation:
The expression can be simplified, but terms cannot be combined.
[tex]\sqrt{48n^3}+\sqrt{9n}-\sqrt{3n}=\sqrt{(4n)^2(3n)}+\sqrt{3^2n}-\sqrt{3n}\\\\=\boxed{4n\sqrt{3n}+3\sqrt{n}-\sqrt{3n}}[/tex]