You can
put this solution on YOUR website!18+567/9. The square root is over the 567 and the 18 and 567 are written as a fraction over 9
:
Assume you mean:
:

:
Find the highest square you can factor out of 567, it will be 81. you can write it:
:

:
:
Extract the square root of 81 and you have:
:

:
:
notice that you can divide 9 evenly into 18 and 9 leaving you with:
:
2 + SqRt(7)