Express the radical using the imaginary unit, i.
Express your answer in simplified form.

Answer:
[tex]\pm i\sqrt{38}[/tex]
Step-by-step explanation:
Given radical is [tex]\pm \sqrt{-38}[/tex]
We can rewrite the radical as,
[tex]\pm\sqrt{-38}=\pm(\sqrt{-1}\times \sqrt{38})[/tex]
[tex]=\pm(i\sqrt{38})[/tex]
(Since, i = [tex]\sqrt{-1}[/tex])
Therefore, simplified form of the given radical will be,
[tex]\pm \sqrt{-38}=\pm i\sqrt{38}[/tex]