Answer:
[tex]5i\sqrt{3}[/tex]
Step-by-step explanation:
we have the expression
[tex]\sqrt{-108} -\sqrt{-3}[/tex]
we know that
[tex]i=\sqrt{-1}[/tex]
so
[tex]i\sqrt{108} -i\sqrt{3}[/tex]
Remember that
[tex]\sqrt{108}=6\sqrt{3}[/tex]
substitute
[tex]6i\sqrt{3} -i\sqrt{3}=5i\sqrt{3}[/tex]
