Luann Againn by Greg Evans for April 13, 2019

I found a site that can do this kind of calculations, and it gives a different answer.

https://www.symbolab.com/solver/algebra-calculator/simplify%20%5Csqrt%5B5%5D%7B288%20a%5E%7B6%7D%20x%5E%7B11%7D%202%5E%7B9%7D%7D