I have 8 square root 8 and i need to make it into a power of 8, how?

https://www.algebra.com/algebra/homework/Square-cubic-other-roots/Square-cubic-other-roots.faq.question.304271.html 

 

http://www.webmath.com/cn_i.html 

 

Will this help? (Also: 8 sq. root 8 is 22.627416998)