Answer:
[tex]\boxed{5x^{11}, x < 0}[/tex]
Step-by-step explanation:
[tex]5\sqrt{x^{22}}[/tex]
Remember that we evaluate the term under the radical first.
Even though x < 0, x²² > 0
So,
[tex] 5\sqrt{x^{22}} = 5x^{11}[/tex]
The simplified expression is
[tex]\boxed{5x^{11}, x < 0}[/tex]