Question

simplfy 4 root81 upon+ root225

Answer 1

4×9/15=4×3/5=12/5...so 12/5 is the answer
OR
it can also be 81^(1/4)/15=3/15=1/5
plz check whatever you the ques is according to that you can opt one of the solutions

Answer 2

4√81 / √225
=4.9/15
=12/5
if your questions is
^4√81/√225
=3/15
=1/5