How can you rewrite ( ^12 sqrt 12 ) ^5 without a radical?

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expressions 4s +9s represents the total number of items that will be displayed on s shelves. simplify this expression

Wrote and expression for the difference of p and 4

What are the excluded values? m+5/mn+3m